Coliseum By Night, Rome Italy - The Colosseum Was Built In The 70s AD And Was The Largest Amphitheatre Built During The Roman Empire. Capable Of Seating 70,000 Spectators, The Amphitheatre Was Used Until 524 When A Series Of Earthquakes Severely Damaged The Structure. Originally Known As The Flavian Amphitheatre, It Was Used For Gladiatorial Combat Until Christianity Slowly Ended This Form Of Entertainment Photo