Colosseum is one of the most impressive sights in Rome and one of the world’s most famous venues. Many people and animals were killed here, you could see everything from gladiatorial games and drama to killings and battles between wild animals. Emperor Vespasian began the building which was completed by his son Titus. The building was completed in 80 A.D. Inauguration lasted one hundred days, and approximately 9,000 animals and 2,000 gladiators were killed during the event. At its peak this place had 87,000 spectators.