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The Colosseum or Coliseum ( KOL-ə-SEE-əm), also known as the Flavian Amphitheatre (Latin: Amphitheatrum Flavium; Italian: Anfiteatro Flavio [aɱfiteˈaːtro ˈflaːvjo] or Colosseo [kolosˈsɛːo]), is an oval amphitheatre in the centre of the city of Rome, Italy. Built of travertine limestone, tuff (volcanic rock), and brick-faced concrete, it was the largest amphitheatre ever built at the time and held 50,000 to 80,000 spectators.

The Colossus of Nero (Colossus Neronis) was a 30-metre (98 ft) bronze statue that the Emperor Nero (37–68 AD) created in the vestibule of his Domus Aurea, the imperial villa complex which spanned a large area from the north side of the Palatine Hill, across the Velian ridge to the Esquiline Hill. It was modified by Nero's successors into a statue of the sun god Sol.