The Colosseum, a giant amphitheatre, is the most famous monument of ancient Rome and is located at the centre of the city. Its original name is Flavian Amphitheatre. It was started by Emperor Vespasian between 70 and 76 AD, and completed by his son, Titus, in 80 AD. The Colosseum was dedicated after Vespasian's death by Titus. He celebrated the opening by holding 100 days worth of games at the place. Originally capable of seating 45,000-50,000 spectators, it was used for gladiatorial contests and public spectacles.