A picture showing the internal structure of the Colosseum

A view of the Colosseum’s internal structure and mix of building materials including clay brick, Tufa stone and Travertine marble blocks.

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A view of the Colosseum’s internal structure, with a combination of clay brickwork, Tufa or Tuff volcanic stone blocks and Travertine marble.

Wooden beams and metal structures were embedded into the stone as part of the various mechanisms under the arena to create cages, lifts and entry/exit points for scenery, animals and gladiatorial participants.

A sense of what the floor level might have looked like can be had from the Amphitheatre at Capua in southern Italy.

The interior structure of the Colosseum — A view of the interior of the Colosseum, also including the cellars under the arena.

See more pictures of the Roman Colosseum