An explo­sion in recent years of so-called “ruin porn” pho­tog­ra­phy has sparked an inevitable back­lash for its sup­posed fetishiza­tion of urban decay and eco­nom­ic dev­as­ta­tion. Doc­u­ment­ing, as the­o­rist Bri­an McHale writes, the “ruin in the wake of the dein­dus­tri­al­iza­tion of North Amer­i­can ‘Rust Belt’ cities” like Detroit, “ruin porn” shows us a world that only … Con­tin­ue read­ing How Did the Romans Make Con­crete That Lasts Longer Than Mod­ern Con­crete? The Mys­tery Final­ly Solved