You've heard of the Roman Colosseum, but what about this bit of Roman architecture, which still today seems to be the tallest building in town?

El Djem is a town in Mahdia Governorate, Tunisia, population 18,302 (2004 census). It is home to 

some of the most impressive Roman remains in Africa.

El Djem is famous for its amphitheater, often incorrectly called a Colosseum, which is capable of

 seating 35,000 spectators. Only the Flavian Amphitheater in Rome (about 50,000 spectators) and the 

ruined theatre of Capua are larger. The amphitheatre at El Djem was built by the Romans under 

proconsul Gordian, who was acclaimed Emperor at Thysdrus (the town's original, latin name), around 

238 and was probably mainly used for gladiator shows and chariot races. Many tourists come here to 

see what it was like to be inside what was once a place where lions and people met their fate.  It is 

possible that construction of the amphitheatre was never finished.