At the peak of its glory, it contained a velarium (a retractable awning to protect spectators during bad weather) and a thick wooden floor covered by sand.
With an outer wall height of 48 meters and a base area of 24,000 square meters, the Colosseum is an imposing structure. At the peak of its glory, it contained a velarium (a retractable awning to protect spectators during bad weather) and a thick wooden floor covered by sand. Under this floor, an underground labyrinth of tunnels held animals and gladiators before the fights.