The Colosseum, also known as the Flavian Amphitheatre, is an iconic symbol of Imperial Rome and is located in the center of Rome, Italy. It is an elliptical amphitheater built of concrete and sand, and it is the largest amphitheater ever constructed. Construction began under the emperor Vespasian in AD 72, and was completed in AD 80 under his successor and heir, Titus. The Colosseum could hold, it is estimated, between 50,000 and 80,000 spectators and was used for gladiatorial contests and public spectacles such as mock sea battles, animal hunts, executions, re-enactments of famous battles, and dramas based on Classical mythology. Despite being damaged by earthquakes and stone-robbers, the Colosseum is still an imposing monument in the heart of Rome and a testament to the ingenuity of ancient engineering. Its enduring presence stands as a reminder of the power and sophistication of the once-great Roman Empire and draws millions of visitors from all over the world.