The Colosseum was built of limestone, brick, something called Tuff or Tufo (no, not tofu), which was a porous stone used for some minor pillars, and in the preparation of cement, which the Romans had only recently discovered – that was used for the vaulted arches holding up the ceiling of the corridors that encircle the arena. And there was marble, for the seats, statues and drinking fountains (!), all long since gone. Back in the day, each of the hundreds of arches you see facing the street on the second and third levels would have contained a marble statue. That’s a lot of marble statues. When you’re up close and personal, you can see this mishmash of building materials...everything but the marble.
|Inside the Colosseum|
|Cells and cages, beneath floor of arena|
Reconstruction of part of floor can be seen in rear
|"Roofs" that once supported marble seats|