Colosseum

Able to hold an estimated number of spectators between 50,000 and 87,000, it is the most important Roman amphitheater, as well as the most imposing monument of ancient Rome that has come down to us.

Inserted in 1980 in the list of World Heritage Sites by UNESCO, together with the entire historic center of Rome, the extraterritorial areas of the Holy See in Italy and the Basilica of San Paolo fuori le mura, in 2007 the complex, the only European monument, it was also included among the New Seven Wonders of the World, following a competition organized by New Open World Corporation (NOWC).

The amphitheater was built in the Flavian era on an area at the eastern edge of the Roman Forum. Its construction was started by Vespasian in 70 AD. and inaugurated by Titus in 80 AD, with further modifications made during Domitian's empire in 90. The building forms an ellipse of 527 m in perimeter, with axes measuring 187.5 and 156.5 m. The arena inside measures 86 × 54 m, with an area of ​​3 357 m². The current height reaches 48.5 m, but originally reached 52 m. The structure clearly expresses the Roman architectural and construction concepts of the early Imperial Age, based respectively on the curved and enveloping line offered by the elliptical plan and on the complexity of the construction systems. Arches and vaults are linked together in a close structural relationship.