If the Unit­ed States of Amer­i­ca is the Roman empire of our time, sure­ly it must have an equiv­a­lent of the Colos­se­um. A year ago, you could’ve heard a wide vari­ety of spec­u­la­tions as to what struc­ture that could pos­si­bly be. Today, many of us would sim­ply respond with “the Sphere,” espe­cial­ly if we hap­pen to … Con­tin­ue read­ing How Las Vegas’ Sphere Actu­al­ly Works: A Looks Inside the New $2.3 Bil­lion Are­na