Tangier, a Moroccan port on the Strait of Gibraltar, has been a strategic gateway between Africa and Europe since Phoenician times.

Its whitewashed hillside medina is home to the Dar el Makhzen, a palace of the sultans that’s now a museum of Moroccan artifacts. The American Legation Museum, also in the medina, documents early diplomatic relations between the U.S. and Morocco in an 1821 Moorish-style former consulate.