- Atar is a city located in the Adrar Region of Mauritania in North-West Africa. It is the capital of the Adrar Region and serves as an important hub for trade and transportation in the area. Atar is known for its unique architecture, with many traditional adobe houses and structures. The city also offers various tourist attractions such as the Chinguetti Mosque, an ancient mosque that is a UNESCO World Heritage site, and the Atar Oasis, which provides a refreshing retreat in the desert. Additionally, the Tergit Plateau, located nearby, offers stunning views and opportunities for hiking and exploration.