Circo Massimo

The Circus Maximus (Latin for greatest or largest circus, in Italian Circo Massimo) is an ancient Roman chariot racing stadium and mass entertainment venue. Situated in the valley between the Aventine and Palatine hills, it was the first and largest stadium in ancient Rome and its later Empire. It measured 621 m (2,037 ft) in length and 118 m (387 ft) in width and could accommodate over 150,000 spectators. In its fully developed form, it became the model for circuses throughout the Roman Empire. The site is now a public park and place for concerts and events (like AS Roma soccer team championship celebration).

Huge open space, in contrast to the Colosseum also pretty deserted

You can almost feel the thunder of the ancient chariots that once raced here. Tangible history right in the middle.