colosseum who built it?

The Colosseum, also known as the Flavian Amphitheatre, is one of Rome's most iconic monuments and a symbol of the greatness of the Roman Empire. Its construction began in 70 AD under Emperor Vespasian and was completed in 80 AD under his successor Titus. The Colosseum was designed to host public events, such as gladiator fights, hunting shows and theatrical performances, and could hold up to 50,000 spectators.

The structure is mainly made of travertine, a type of limestone, and features innovative architecture for the time, with a system of arches and columns that ensured stability and strength. The Colosseum is an extraordinary example of Roman engineering, with a system of entrances and exits that allowed a rapid inflow and outflow of the public.

Over the centuries, the Colosseum has suffered damage from earthquakes, looting and the use of materials for other constructions. Today it is a UNESCO site and one of the most visited tourist attractions in the world, representing an important testimony to Roman history and culture.