Ksar Ait Ben Haddou is a UNESCO World Heritage Site and a traditional pre-Saharan habitat in the South of Morocco. It is considered one of the most well-preserved fortified cities in the country and is a popular tourist destination. The city is surrounded by high walls and its buildings are made of red earth, which gives it a unique appearance. The city has been used as a location for many movies and TV shows, making it an important cultural and historical site in Morocco.