The Old City of Sanaʽa[a][b] is a recognised UNESCO World Heritage Site in the Amanat Al Asimah Governorate, Yemen.

Surrounded by ancient clay walls that stand 9–14 metres (30–46 ft) high, the Old City contains more than 100 mosques, 12 hammams (baths), and 6,500 houses.

British writer Jonathan Raban visited in the 1970s and described the city as fortress-like, its architecture and layout resembling a labyrinth", further noting "It was like stepping out into the middle of a vast pop-up picture book.

Away from the street, the whole city turned into a maze of another kind, a dense, jumbled alphabet of signs and symbols.

Traditionally, the Old City was composed of several quarters (hara), generally centred on an endowed complex containing a mosque, a bathhouse, and an agricultural garden (maqshama).