M’Zab Valley, a UNESCO World Heritage site in Algeria, recognized in 1982, is a 10th-century oasis settlement in the Sahara, founded by the Ibadi Muslim sect. Its five fortified towns, or ksour, feature palm grove irrigation, mudbrick architecture, and a minimalist mosque design, reflecting a unique communal lifestyle. This well-preserved site showcases Algeria’s cultural heritage, blending human ingenuity with a harsh desert environment in a timeless urban landscape.