Picture of the day on November 11, 2017: Hypogeum of the Amphitheatre of El Jem, an archeological site in the city of El Djem, Tunisia. At both sides of this tunnel are located the cells where the beasts for the games were kept. The amphitheatre, a UNESCO World Heritage Site since 1979, was built around 238 AD, when the modern Tunisia belonged to the Roman province of Africa. It is the third biggest amphiteatre and one of the best preserved Roman ruins in the world with capacity for 35,000 spectators within 148 metres (486 ft) and 122 metres (400 ft) long axes and unique in Africa.