the.com/colosseum
Rome's bloodiest stage, where the floor could vanish and a flood became the sea.
Naval battlesEarly on it was flooded for staged sea fights
Body countUp to 400,000 people died inside it
Awning crewSailors worked the giant retractable sunshade
Quick exit50,000 spectators could empty in minutes
Stone thievesHalf of it was looted to build palaces