The Colosseum is the largest amphitheatre of the ancient Roman world and the enduring symbol of Imperial Rome. Begun under Emperor Vespasian around 72 AD and inaugurated by his son Titus in 80 AD, it once held tens of thousands of spectators for gladiatorial combat, wild-animal hunts, and public spectacles.
Today it is one of the New Seven Wonders of the World and a UNESCO World Heritage Site. A standard ticket is combined with the neighbouring Roman Forum and Palatine Hill, while special tickets add the underground hypogeum and the reconstructed arena floor.
Tickets are timed and sold online rather than at the gate, so book ahead. Arrive right at opening (around 8:30am) or in the late afternoon to avoid the worst crowds and heat, wear comfortable shoes, and keep bags small, as large backpacks are not permitted inside.