Must see the Colosseum by Goner
You must see the Colosseum, it's so much larger than I imagined. It held up to 55,000 people. As you look down into its depths you can see the pens (see in my travelog) where the Christians and the wild animals were kept for slaughter, at the inaugural games in AD 80 over 9,000 wild animals were killed.The arena had approximately eighty entrances so crowds could arrive and leave easily and quickly, much more efficient than our buildings of today..
The plan is a vast ellipse, measuring externally 615 ft x 510 ft, with the base of the building covering about 6 acres. Vaults span between eighty radial walls to support tiers of seating and for passageways and stairs.
The facade of three tiers of arches and an attic story is about 158 ft tall ? roughly equivalent to a 12-15 story building.