Because of the value and importance of its many historical buildings, Verona has been named a UNESCO World Heritage Site. Verona preserved many ancient Roman monuments (including the magnificent Arena) in the early Middle Ages, but many of its early medieval edifices were destroyed or heavily damaged by the earthquake of 3 January 1117, which led to a massive Romanesque rebuilding.
Verona is famous for its Roman amphitheater, the Arena, found in the city's largest piazza, the Piazza Bra. Completed around 30 AD, it is the third-largest in Italy after Rome's Colosseum and the arena at Capua. It measures 139 meters long and 110 meters wide, and could seat some 25,000 spectators in its 44 tiers of marble seats. The ludi (shows and gladiator games) performed within its walls were so famous that they attracted spectators from far beyond the city. The current two-story faรงade is actually the internal support for the tiers; only a fragment of the original outer perimeter wall in white and pink limestone from Valpolicella, with three stories remains. The interior is very impressive and is virtually intact, and has remained in use even today for public events, fairs, theatre, and open-aired opera during warm summer nights.