El Jem, a small city in Tunisia, is home to one of the most superb Roman ruins inside the world. The most important enchantment in El Jem is the El Djem Amphitheater, additionally called the Colosseum of El Jem. This large shape was built in the third century and will seat up to 35,000 human beings. It is one of the first-rate-preserved Roman amphitheaters and is a UNESCO World Heritage Site.