Travel to Rome part VII

The structure itself radiate from the elliptical center, the weight is carried on travertine piers and vaults, a stone barrel vault construction provides substructure needed for the exterior decoration. The outer ring of piers and barrel vaults acted as buttress and crowd route. Lower tiers were made of marble and the top wood was used.
It’s said that the Colosseum could hold 50,000 spectators to be entertained by gladiator fights, naval battles, wild animal hunt, and rebels executions.

Under the arena was a gallery of corridors, deposits, elevator shafts, and passageways to facilitate the emerging into the center stage, for all the elements necessary for the spectacle. A 15 feet high wall protected the spectators from being attacked by the wild animals.
In the year 423 AD the Colosseum was restricted to continue the bloody display.
It is say about the Colosseum: “While stands the Colosseum, Rome shall stand. When falls the Colosseum, Rome shall fall, and when Rome fall the world fall up on them.”