Roman Empire Amphitheatre:-- Built in the 1st century AD when the Roman Empire peaked which the Colosseum represents Rome at its grandest. The Colosseum is an egg-shaped building that is about 620 feet long, 512 feet wide and 158 feet tall. This oval amphitheatre situated in the centre of the city of Rome, Italy, just east of the Roman Forum. It is the largest ancient amphitheatre ever built, and is still the largest standing amphitheatre in the world today.
