The Colosseum or Coliseum (/kɒləˈsiːəm/ kol-ə-see-əm), also known as the Flavian Amphitheatre (Latin: Amphitheatrum Flavium; Italian: Anfiteatro Flavio [amfiteˈaːtro ˈflaːvjo] or Colosseo [kolosˈsɛːo]), is an oval amphitheatre in the centre of the city of Rome, Italy. Built of concrete and sand,[1] it is the largest amphitheatre ever built and is considered one of the greatest works of architecture and engineering ever.[2]