The Colosseum was new back then and that would be an arena for people and animals. There was a person who was a roman gladiator and he was famous and he was the strongest one there. There were people who had these tarps which would cover anyone from the sun or the rain. Sometimes the arena would be filled with water for naval battles in the arena.
A group of passengers went under the arena and made elevated things to lift up the animals and stuff but the roman gladiator was too strong he could fight a lion and win. Over a million animals died that time and half a million people watched. Then the Colosseum was decaying across the years and now it left up old broken and it is still famous