Morocco's capital, and unusually for a Moroccan city a calm, walkable old town open to the Atlantic. On a cliff where the Bou Regreg meets the sea stands the blue-and-white Kasbah of the Udayas; below it a straight-streeted medina laid out by refugees from Spain runs to the water. Beyond rise the unfinished Almohad Hassan Tower, the royal mausoleum, and the Chellah, where a Roman town became a garden of Muslim tombs. Read the ocean-facing old capital, at your own pace.