The Colosseum, also known as the Flavian Amphitheatre, is one of the most iconic monuments in Rome and in the history of architecture. Its construction began under Emperor Vespasian in 70 AD and was completed in 80 AD under his successor and son Titus. The project was later extended by Domitian, completing the structure and creating the surrounding area known as the 'Campus Martius'.
The Colosseum was built mainly by Roman slaves and workers, using materials such as travertine, tuff and brick. The structure is an extraordinary example of Roman engineering, with a capacity for between 50,000 and 80,000 spectators. It was used for various public events, including gladiator fights, hunting shows and theatrical performances.
Its elliptical shape and numerous arches reflect the Roman builders' skill in the use of the arch and the vault, techniques that influenced architecture in later centuries. Today, the Colosseum is a symbol of the greatness of the Roman Empire and an important tourist site.