Beni Yazgin, also known as At Yazgin, is an ancient city more than a thousand years old, located near the city of Ghardaia in the north of the Algerian desert. It was initially built as an amphitheater, and today it is surrounded by ancient walls, and is filled with interesting historical buildings As a UNESCO World Heritage Site, you can wander its alleys up to the top of the hill, which is the highest point in the city, which includes the Sheikh Belhaj Tower or Bouila Tower, which was built in the sixteenth century in one night, according to legend.