Why There Isn’t a Bridge from Italy to Sicily – And Why the 2,000-Year-Old Dream of Building the Bridge May Soon Be Realized

We’ve all heard of the great Amer­i­can road trip. If you’ve ever dreamt of tak­ing a great Ital­ian road trip, you’ve sure­ly come across this inevitable hitch in the plan: you can’t dri­ve to Sici­ly. You can, of course, put your car on a fer­ry; you can even take a train that gets put on a fer­ry, the last of its kind in Europe. But a stretch of road span­ning the volatile Strait of Messi­na, which sep­a­rates Sici­ly from the main­land, has been a dream deferred since antiq­ui­ty, when Pliny the Elder wrote of Roman notions of build­ing a float­ing bridge — which, with its poten­tial to dis­rupt the water­way’s con­sid­er­able north-south trade, was even­tu­al­ly scrapped.

It seems that Ital­ians have been jok­ing about the impos­si­bil­i­ty of a bridge to Sici­ly ever since. These two videos from Get to the Point and The B1M explain the his­to­ry of this con­tin­u­al­ly frus­trat­ed infra­struc­tur­al project, and the polit­i­cal maneu­vers that have recent­ly begun to make it seem very near­ly semi-pos­si­ble.

Though the sea mon­sters Scyl­la and Charyb­dis of which Homer sung may not be a threat, the chal­lenges are still many and var­ied, from the depth of the strait and the region­al seis­mic activ­i­ty that would neces­si­tate build­ing the largest sin­gle-span bridge in the world to the inter­fer­ence of local mafia groups who make their liv­ing by dri­ving up the costs of con­struc­tion works while also mak­ing sure that they’re nev­er com­plet­ed.

Two years ago, the gov­ern­ment of Prime Min­is­ter Gior­gia Mel­oni approved a decree to pro­ceed with con­struc­tion, but whether it will real­ize its pro­ject­ed com­ple­tion by 2032 is any­body’s guess. The very idea of such a struc­ture has such cul­tur­al res­o­nance that its exis­tence — as well as its col­lapse — was envi­sioned to great effect in the recent Ital­ian crime dra­ma The Bad Guy. Though crit­i­cal­ly acclaimed, that series was also con­demned in some polit­i­cal quar­ters for per­pet­u­at­ing neg­a­tive stereo­types of the coun­try: stereo­types that could poten­tial­ly be refut­ed by get­ting some ambi­tious new infra­struc­ture fin­ished. If Italy can get the Strait of Messi­na Bridge built, after all, what could­n’t it do?

Relat­ed con­tent:

The Bril­liant Engi­neer­ing That Made Venice: How a City Was Built on Water

Watch Venice’s New $7 Bil­lion Flood Defense Sys­tem in Action

High-Res­o­lu­tion Walk­ing Tours of Italy’s Most His­toric Places: The Colos­se­um, Pom­peii, St. Peter’s Basil­i­ca & More

Built to Last: How Ancient Roman Bridges Can Still With­stand the Weight of Mod­ern Cars & Trucks

Why Europe Has So Few Sky­scrap­ers

Rome’s Colos­se­um Will Get a New Retractable Floor by 2023 — Just as It Had in Ancient Times

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities and the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

A Tour of the Final Home Designed By Frank Lloyd Wright: The Circular Sun House

Some remem­ber the nine­teen-nineties in Amer­i­ca as the sec­ond com­ing of the nine­teen-fifties. What­ev­er holes one can poke in that his­tor­i­cal fram­ing, it does feel strange­ly plau­si­ble inside Frank Lloyd Wright’s Cir­cu­lar Sun House. Though not actu­al­ly built until 1967, it was com­mis­sioned from Wright by ship­ping mag­nate Nor­man Lykes in 1959, the last year of the archi­tec­t’s life. Almost dat­ed though it may have looked by the time of its com­ple­tion, super­vised by Wright’s appren­tice John Rat­ten­bury, it would have accrued some retro cachet over the sub­se­quent decades. Then, in the ren­o­va­tion-mad nineties, the house­’s own­ers brought Rat­ten­bury back out to do a thor­ough update and remod­el.

The result is a kind of hybrid fifties-nineties aes­thet­ic, which will suit some tastes bet­ter than oth­ers. But then, so do all the res­i­dences designed by Wright, of which the Cir­cu­lar Sun House in Phoenix, Ari­zona, is the very last.

In the Archi­tec­tur­al Digest video above, post­ed when the house went on the mar­ket in 2021, real estate agent Dean­na Peters points out a few of its Wright­ian fea­tures: its cir­cu­lar form, but also its curved hall­ways, its cus­tom-built cab­i­netry (Philip­pine mahogany, of course), its sig­na­ture “com­pres­sion-and-release” and “inside-out” spa­tial effects, its can­tilevered bal­cony, its inte­gra­tion with the desert envi­ron­ment, and even its car­port — Wright’s own coinage, and indeed his own inven­tion.

Also in the man­ner of most Wright-designed homes — as he him­self was known to acknowl­edge, and not with­out a boast­ful note — the Cir­cu­lar Sun House seems eas­i­er to look at than to live in, let alone main­tain. “The 3‑bedroom home last sold in 2019, before it had a brief peri­od on Airbnb (rent­ed for approx­i­mate­ly $1,395 a night),” wrote Homes & Gar­dens’ Megan Slack in 2023. At that time, it was on the mar­ket for $8.5 mil­lion, about half a mil­lion dol­lars more than its own­er want­ed in 2021. Para­dox­i­cal­ly, though it remains unsold as of this writ­ing, its ask­ing price has risen to $8,950,000. Wright’s name brings a cer­tain pre­mi­um, of course, but so do the trends of the moment: one hears, after all, that the nineties are back.

Relat­ed con­tent:

130+ Pho­tographs of Frank Lloyd Wright’s Mas­ter­piece Falling­wa­ter

Take a Tour of Frank Lloyd Wright’s Ennis House, the Man­sion That Has Appeared in Blade Run­ner, Twin Peaks & Count­less Hol­ly­wood Films

A Beau­ti­ful Visu­al Tour of Tir­ran­na, One of Frank Lloyd Wright’s Remark­able, Final Cre­ations

Take a 360° Vir­tu­al Tour of Tal­iesin, Frank Lloyd Wright’s Per­son­al Home & Stu­dio

Inside the Beau­ti­ful Home Frank Lloyd Wright Designed for His Son (1952)

What Frank Lloyd Wright’s Unusu­al Win­dows Tell Us About His Archi­tec­tur­al Genius

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities and the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

The Architectural History of the Louvre: 800 Years in Three Minutes

Set­ting aside just one day for the Lou­vre is a clas­sic first-time Paris vis­i­tor’s mis­take. The place is sim­ply too big to com­pre­hend on one vis­it, or indeed on ten vis­its. To grow so vast has tak­en eight cen­turies, a process explained in under three min­utes by the offi­cial video ani­mat­ed above. First con­struct­ed around the turn of the thir­teenth cen­tu­ry as a defen­sive fortress, it was con­vert­ed into a roy­al res­i­dence a cen­tu­ry and a half lat­er. It gained its first mod­ern wing in 1559, under Hen­ri II; lat­er, his wid­ow Cather­ine de’ Medici com­mis­sioned the Tui­leries palace and gar­dens, which Hen­ri IV had joined up to the Lou­vre with the Grande Galerie in 1610.

In the sev­en­teen-tens, Louis XVI com­plet­ed the Cour Car­rée, the Lou­vre’s main court­yard, before decamp­ing to Ver­sailles. It was only dur­ing the French Rev­o­lu­tion, toward the end of that cen­tu­ry, that the Nation­al Assem­bly declared it a muse­um.

The project of unit­ing it into an archi­tec­tur­al whole con­tin­ued under Napoleon I and III, the lat­ter of whom final­ly com­plet­ed it (and in the process dou­bled its size). The Tui­leries Palace was torched dur­ing the unpleas­ant­ness over the Paris Com­mune, but the rest of the Lou­vre sur­vived. Since then, its most notable alter­ation has been the addi­tion of I. M. Pei’s glass pyra­mid in 1989.

The pyra­mid may still have an air of con­tro­ver­sy these three and a half decades lat­er, but you can hard­ly deny that it at least improves upon the Cour Car­rée’s years as a park­ing lot. It stands, in any case, as just one of the count­less fea­tures that make the Lou­vre an archi­tec­tur­al palimpsest of French his­to­ry prac­ti­cal­ly as com­pelling as the col­lec­tion of art it con­tains. (Fran­coph­o­nes can learn much more about it from the longer-form doc­u­men­taries post­ed by Des Racines et des Ailes and Notre His­toire.) And how did I approach this most famous of all French insti­tu­tions on my own first trip to Paris, you ask? By not going at all. On my next trip to Paris, how­ev­er, I plan to go nowhere else.

Relat­ed con­tent:

The Louvre’s Entire Col­lec­tion Goes Online: View and Down­load 480,00 Works of Art

A 3D Ani­mat­ed His­to­ry of Paris: Take a Visu­al Jour­ney from Ancient Times to 1900

How France Hid the Mona Lisa & Oth­er Lou­vre Mas­ter­pieces Dur­ing World War II

Take Immer­sive Vir­tu­al Tours of the World’s Great Muse­ums: The Lou­vre, Her­mitage, Van Gogh Muse­um & Much More

Japan­ese Guid­ed Tours of the Lou­vre, Ver­sailles, the Marais & Oth­er Famous French Places (Eng­lish Sub­ti­tles Includ­ed)

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities and the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

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How Frank Lloyd Wright Became Frank Lloyd Wright: A Video Introduction

Frank Lloyd Wright is unlike­ly to be dis­placed as the arche­type of the genius archi­tect any­time soon, at least in Amer­i­ca, but even he had to start some­where. At nine years old, as archi­tec­ture YouTu­ber Stew­art Hicks explains in the video above, Wright received a set of blocks from his moth­er, who hoped that “her son would grow up to become a great archi­tect, and she thought the cre­ativ­i­ty unlocked and prac­ticed with these blocks could kick-start his jour­ney.” Evi­dent­ly, she was­n’t wrong: “by the time Wright attempt­ed to design his first build­ing years lat­er, he spent count­less hours arrang­ing the blocks,” famil­iar as he was with “pro­por­tion, sym­me­try, bal­ance, and oth­er prin­ci­ples of design well before he ever picked up a pen­cil.”

Of course, most of us played with blocks in child­hood, and few of us now bear much com­par­i­son to the man who designed Falling­wa­ter and the Guggen­heim. But his moth­er’s toy selec­tion was just one of many fac­tors that influ­enced the archi­tec­tur­al devel­op­ment that con­tin­ued through­out Wright’s long life.

In fif­teen min­utes, Hicks explains as many of them as pos­si­ble: his ear­ly oppor­tu­ni­ty to work on “shin­gle-style” homes, whose cru­ci­form lay­out he would adapt into his own designs; his arrival in a Chica­go that was still rebuild­ing after its great fire of 1871, when there were vast sky­scraper inte­ri­ors to be cre­at­ed; the new Mid­west­ern man­u­fac­tur­ing mon­ey pre­pared to com­mis­sion homes from him; and his inspir­ing encoun­ters with Japan­ese aes­thet­ics, both at home and in Japan itself.

After return­ing from a 1905 Japan trip, Wright got to work on Uni­ty Tem­ple in Oak Park, Illi­nois. He had it built with the rel­a­tive­ly new mate­r­i­al of rein­forced con­crete, thus get­ting “in on the ground floor of a tech­nol­o­gy that could com­plete­ly trans­form what build­ings could do,” mak­ing pos­si­ble “soar­ing can­tilevers, grace­ful curves,” and oth­er ele­ments that would become part of his archi­tec­tur­al sig­na­ture. A few decades lat­er, the Unit­ed States’ sub­urb-build­ing boom made Wright’s rur­al-urban “Uson­ian” homes and “Broad­acre City” plan look pre­scient; indeed, “almost every sin­gle house inside of a post­war sub­urb bears his trace.” His will­ing­ness to appear in print and on film, radio, and tele­vi­sion kept him in the Amer­i­can pub­lic con­scious­ness, and he made sure to instill his prin­ci­ples into gen­er­a­tions of stu­dents. Frank Lloyd Wright may be long gone, but he made sure that his vision of Amer­i­ca would live on.

Relat­ed con­tent:

A Beau­ti­ful Visu­al Tour of Tir­ran­na, One of Frank Lloyd Wright’s Remark­able, Final Cre­ations

What Frank Lloyd Wright’s Unusu­al Win­dows Tell Us About His Archi­tec­tur­al Genius

A Vir­tu­al Tour of Frank Lloyd Wright’s Lost Japan­ese Mas­ter­piece, the Impe­r­i­al Hotel in Tokyo

What It’s Like to Work in Frank Lloyd Wright’s Icon­ic Office Build­ing

Frank Lloyd Wright Reflects on Cre­ativ­i­ty, Nature and Reli­gion in Rare 1957 Audio

Frank Lloyd Wright Cre­ates a List of the 10 Traits Every Aspir­ing Artist Needs

How Frank Lloyd Wright’s Son Invent­ed Lin­coln Logs, “America’s Nation­al Toy” (1916)

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities and the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

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Famous Architects Dress as Their Famous New York City Buildings (1931)

On Jan­u­ary 13, 1931, the Soci­ety of Beaux-Arts Archi­tects held a ball at the Hotel Astor in New York City. Accord­ing to an adver­tise­ment for the event, any­one who paid $15 per tick­et (big mon­ey dur­ing the Depres­sion) could see a “hilar­i­ous mod­ern art exhi­bi­tion” and things “mod­ernistic, futur­is­tic, cubis­tic, altru­is­tic, mys­tic, archi­tis­tic and fem­i­nis­tic.” Atten­dees also got to wit­ness more than 20 famous archi­tects dressed as build­ings they had designed—buildings that would become fix­tures of the New York City sky­line.

In the pic­ture above, we have from left to right: A. Stew­art Walk­er as the Fuller Build­ing (1929), Leonard Schultze as the Wal­dorf-Asto­ria Hotel (1931), Ely Jacques Kahn as the Squibb Build­ing (1930), William Van Alen as the Chrysler Build­ing (1930), Ralph Walk­er as 1 Wall Street (1931), D.E. Ward as the Met­ro­pol­i­tan Tow­er and Joseph H. Freed­lan­der as the Muse­um of the City of New York (1930).

A 2006 arti­cle in The New York Times notes that the event, now con­sid­ered “one of the most spec­tac­u­lar par­ties of the last cen­tu­ry,” was cov­ered by WABC radio. A few pho­tographs remain, like the one above. As does a tan­ta­liz­ing short bit of video.

If you would like to sign up for Open Culture’s free email newslet­ter, please find it here. It’s a great way to see our new posts, all bun­dled in one email, each day.

If you would like to sup­port the mis­sion of Open Cul­ture, con­sid­er mak­ing a dona­tion to our site. It’s hard to rely 100% on ads, and your con­tri­bu­tions will help us con­tin­ue pro­vid­ing the best free cul­tur­al and edu­ca­tion­al mate­ri­als to learn­ers every­where. You can con­tribute through Pay­Pal, Patre­on, and Ven­mo (@openculture). Thanks!

via NYT

Relat­ed Con­tent:

Archi­tect Breaks Down the Design Of Four Icon­ic New York City Muse­ums: the Met, MoMA, Guggen­heim & Frick

Archi­tect Breaks Down Five of the Most Icon­ic New York City Apart­ments

An Immer­sive, Archi­tec­tur­al Tour of New York City’s Icon­ic Grand Cen­tral Ter­mi­nal

A Whirl­wind Archi­tec­tur­al Tour of the New York Pub­lic Library–“Hidden Details” and All

 

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The Longest Construction Projects in History: Why Sagrada Família, the Milan Duomo, Greek Temples & Other Famous Structures Took Generations to Complete

Pub­lic-tran­sit projects are the reli­gious build­ing endeav­ors of twen­ty-first cen­tu­ry Amer­i­ca, less because they’re moti­vat­ed by the belief in any par­tic­u­lar deity than by how much time and mon­ey they now require to com­plete. Take New York’s Sec­ond Avenue sub­way, whose less than two-mile-long first phase opened in 2017: its con­struc­tion had cost $4.45 bil­lion, and the line itself had first been pro­posed 97 years ear­li­er. That’s noth­ing by ancient stan­dards: the Tem­ple of Apol­lo at Didy­ma took six cen­turies; the Tem­ple of Olympian Zeus at Athens lagged a full 650 years behind sched­ule; and the Heraion of Samos end­ed up pass­ing the 800-year mark.

These facts come from the new Told in Stone video above on “the longest con­struc­tion project in his­to­ry.” Some of the struc­tures cov­ered will be famil­iar to Open Cul­ture read­ers: for instance, Notre-Dame de Paris, which took near­ly 200 years to build (and which reopened just this month after five years of fire-dam­age repair and restora­tion), or Sagra­da Família, which broke ground in 1882 and is sched­uled for com­ple­tion in 2026 — if you don’t count dec­o­rat­ing its exte­ri­or, which could go on until 2034. Orna­men­ta­tion is impor­tant in archi­tec­ture of this kind: it’s why the Duo­mo di Milano, whose con­struc­tion began in 1386, was­n’t tru­ly com­plete until 1965.

The dec­o­ra­tion process was also pro­longed in the case of the Basil­i­ca Papale di San Pietro in Cit­tà di Vat­i­cano, or Saint Peter’s Basil­i­ca, which took 120 years to build, span­ning the ear­ly six­teenth and sev­en­teenth cen­turies. As the time­line goes for such an ambi­tious project in that era, it could have been worse; that par­tic­u­lar High Renais­sance church owes its noto­ri­ety to its sheer cost, which works out to “tens of bil­lions” of dol­lars today. This video, being Microsoft-spon­sored, leads up to that soft­ware giant’s 3D, AI-assist­ed repli­ca of Saint Peter’s Basil­i­ca, which we fea­tured here on Open Cul­ture when it was released this past fall. Per­haps behold­ing its glo­ry will give New York­ers a lit­tle more faith that the Sec­ond Avenue Sub­way will reach 125th Street in their life­times.

Relat­ed con­tent:

An Archi­tec­tur­al Tour of Sagra­da Família, Antoni Gaudí’s Auda­cious Church That’s Been Under Con­struc­tion for 142 Years

The Cre­ation & Restora­tion of Notre-Dame Cathe­dral, Ani­mat­ed

Explore the World’s First 3D Repli­ca of St. Peter’s Basil­i­ca, Made with AI

The Beau­ty & Inge­nu­ity of the Pan­theon, Ancient Rome’s Best-Pre­served Mon­u­ment: An Intro­duc­tion

How the World’s Biggest Dome Was Built: The Sto­ry of Fil­ip­po Brunelleschi and the Duo­mo in Flo­rence

How Design­ing Build­ings Upside-Down Rev­o­lu­tion­ized Archi­tec­ture, Mak­ing Pos­si­ble St. Paul’s Cathe­dral, Sagra­da Família & More

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities and the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

How Medieval Islamic Engineering Brought Water to the Alhambra

Between 711 and 1492, much of the Iber­ian Penin­su­la, includ­ing mod­ern-day Spain, was under Mus­lim rule. Not that it was easy to hold on to the place for that length of time: after the fall of Tole­do in 1085, Al-Andalus, as the ter­ri­to­ry was called, con­tin­ued to lose cities over the sub­se­quent cen­turies. Cór­do­ba and Seville were recon­quered prac­ti­cal­ly one right after the oth­er, in 1236 and 1248, respec­tive­ly, and you can see the inva­sion of the first city ani­mat­ed in the open­ing scene of the Pri­mal Space video above. “All over the land, Mus­lim cities were being con­quered and tak­en over by the Chris­tians,” says the com­pan­ion arti­cle at Pri­mal Neb­u­la. “But amidst all of this, one city remained uncon­quered, Grana­da.”

“Thanks to its strate­gic posi­tion and the enor­mous Alham­bra Palace, the city was pro­tect­ed,” and there the Alham­bra remains today. A “thir­teenth-cen­tu­ry pala­tial com­plex that’s one of the world’s most icon­ic exam­ples of Moor­ish archi­tec­ture,” writes BBC.com’s Esme Fox, it’s also a land­mark feat of engi­neer­ing, boast­ing “one of the most sophis­ti­cat­ed hydraulic net­works in the world, able to defy grav­i­ty and raise water from the riv­er near­ly a kilo­me­ter below.”

The jew­el in the crown of these elab­o­rate water­works is a white mar­ble foun­tain that “con­sists of a large dish held up by twelve white myth­i­cal lions. Each beast spurts water from its mouth, feed­ing four chan­nels in the patio’s mar­ble floor that rep­re­sent the four rivers of par­adise, and then run­ning through­out the palace to cool the rooms.”

The fuente de los Leones also tells time: the num­ber of lions cur­rent­ly indi­cates the hour. This works thanks to an inge­nious design explained both ver­bal­ly and visu­al­ly in the video. Any­one vis­it­ing the Alham­bra today can admire this and oth­er exam­ples of medieval opu­lence, but trav­el­ers with an engi­neer’s cast of mind will appre­ci­ate even more how the palace’s builders got the water there at all. “The hill was around 200 meters above Granada’s main riv­er,” says the nar­ra­tor, which entailed an ambi­tious project of damming and redi­rec­tion, to say noth­ing of the pool above the palace designed to keep the whole hydraulic sys­tem pres­sur­ized. The Alham­bra’s heat­ed baths and well-irri­gat­ed gar­dens rep­re­sent the lux­u­ri­ous height of Moor­ish civ­i­liza­tion, but they also remind us that, then as now, beneath every lux­u­ry lies an impres­sive feat of tech­nol­o­gy.

Relat­ed con­tent:

How Did Roman Aque­ducts Work?: The Most Impres­sive Achieve­ment of Ancient Rome’s Infra­struc­ture, Explained

The Bril­liant Engi­neer­ing That Made Venice: How a City Was Built on Water

How Toi­lets Worked in Ancient Rome and Medieval Eng­land

The Amaz­ing Engi­neer­ing of Roman Baths

A 13th-Cen­tu­ry Cook­book Fea­tur­ing 475 Recipes from Moor­ish Spain Gets Pub­lished in a New Trans­lat­ed Edi­tion

His­toric Spain in Time Lapse Film

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities and the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

Explore the World’s First 3D Replica of St. Peter’s Basilica, Made with AI

In the trail­er below for the world’s first 3D repli­ca of St. Peter’s Basil­i­ca, Yves Ubel­mann speaks of using “AI for Good,” which isn’t just an ide­al, but also the name of a lab at Microsoft. Microsoft and Ubel­man’s dig­i­tal-preser­va­tion com­pa­ny Iconem were two of the par­tic­i­pants in that ambi­tious project, along with the Vat­i­can itself. Pope Fran­cis, writes AP’s Nicole Win­field, “has called for the eth­i­cal use of AI and used his annu­al World Mes­sage of Peace this year to urge an inter­na­tion­al treaty to reg­u­late it, argu­ing that tech­nol­o­gy lack­ing human val­ues of com­pas­sion, mer­cy, moral­i­ty and for­give­ness were too great.”

What bet­ter show of good faith in the tech­nol­o­gy than to allow AI to be used to bring the cen­ter of the faith Pope Fran­cis rep­re­sents to the world? In the near­ly 400 years since its com­ple­tion, of course, the world has always come to the cur­rent St. Peter’s Basil­i­ca, and will con­tin­ue to do so.

The 3D-repli­ca project “has been launched ahead of the Vatican’s 2025 Jubilee, a holy year in which more than 30 mil­lion pil­grims are expect­ed to pass through the basilica’s Holy Door, on top of the 50,000 who vis­it on a nor­mal day,” Win­field writes. But no mat­ter where in the world you hap­pen to be, you can vir­tu­al­ly enter St. Peter’s Basil­i­ca right now, and spend as long as you like, admir­ing the basil­i­ca itself, the cupo­la, Bernini’s St. Peter’s Bal­dachin, and Michelan­gelo’s Pietà, among oth­er fea­tures.

How­ev­er impor­tant (and atten­tion-draw­ing) arti­fi­cial intel­li­gence was as a tool in the cre­ation of this ultra-pre­cise “dig­i­tal twin” of St. Peter’s Basil­i­ca, the four-week process of cap­tur­ing every detail of the real struc­ture that could be cap­tured also neces­si­tat­ed the use of drones, lasers, and cam­eras tak­ing more than 400,000 dig­i­tal pho­tos. The “AI for Good Lab con­tributed advanced tools that refined the dig­i­tal twin with mil­lime­ter-lev­el accu­ra­cy, and used AI to help detect and map struc­tur­al vul­ner­a­bil­i­ties like cracks and miss­ing mosa­ic tiles,” says Microsoft­’s site. “The Vat­i­can over­saw the col­lab­o­ra­tion, ensur­ing the preser­va­tion of the Basil­i­ca as a cul­tur­al, spir­i­tu­al, and his­tor­i­cal­ly sig­nif­i­cant site for years to come.”

It makes a cer­tain sense to apply the high­est tech­nol­o­gy of our time for the ben­e­fit of a build­ing known as the great­est archi­tec­tur­al mar­vel of its time. But in order to bet­ter appre­ci­ate the kind of knowl­edge that will be revealed by the 22 petabytes of infor­ma­tion that went into the dig­i­tal mod­el (which offers its own guid­ed tour) we’d do well to immerse our­selves first in what was already known about St. Peter’s Basil­i­ca. For a brief intro­duc­tion to the con­cep­tion and evo­lu­tion of this grand church as it stands today, we could do much worse than archi­tec­ture-and-his­to­ry YouTu­ber Manuel Bravo’s video “St Peter’s Basil­i­ca Explained.” If you watch it, don’t be sur­prised if you find your­self tempt­ed to engage in pro­longed explo­ration of the mod­el — or indeed, to book a vis­it to the real thing. Enter the dig­i­tal St. Peter’s here.

Relat­ed con­tent:

Take a 3D Vir­tu­al Tour of the Sis­tine Chapel, St. Peter’s Basil­i­ca and Oth­er Art-Adorned Vat­i­can Spaces

High-Res­o­lu­tion Walk­ing Tours of Italy’s Most His­toric Places: The Colos­se­um, Pom­peii, St. Peter’s Basil­i­ca & More

3D Scans of 7,500 Famous Sculp­tures, Stat­ues & Art­works: Down­load & 3D Print Rodin’s Thinker, Michelangelo’s David & More

The Vat­i­can Library Goes Online and Dig­i­tizes Tens of Thou­sands of Man­u­scripts, Books, Coins, and More

Rome Reborn: A New 3D Vir­tu­al Mod­el Lets You Fly Over the Great Mon­u­ments of Ancient Rome

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities and the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les. Fol­low him on Twit­ter at @colinmarshall.

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