The Colosseum is the center of Rome and one of the most well-known and recognized architectural majesties of the world. It was built around the 1st to 2nd century A.D. This period was the height of not only Rome but also the era of the Colosseum. This location was once where the palace of Nero stood, but due to earthquakes, the palace was destroyed. The Colosseum took its place but once again due to earthquakes pieces of the structure fell off Over the years those pieces were taken to create churches and other buildings in Rome. It, of course, was the largest and most famous arena. It was used for the next 400 years till the fall of the empire due to economy struggles.