Saint-Louis is a city on the northwest coast of Senegal. It’s known for its colonial architecture. The old town is on N’Dar Island, in the Senegal River. This island is linked to the mainland by the 1865 Faidherbe Bridge, designed by Gustave Eiffel. Place Faidherbe has well-preserved buildings, including the Governor’s Palace and the neoclassical cathedral. The Musée du CRDS exhibits historical artifacts and art.