Chellah is the most atmospheric monument in Rabat. A walled site on a hillside south of the modern city, it holds the ruins of Sala Colonia — a Roman port founded in the 1st century CE — beneath the tombs, minaret, and gardens of a 14th-century Merinid royal necropolis. White storks nest on every tower, frogs sound in the sacred pool, and the whole enclosure feels part archaeological park, part overgrown garden. Part of the UNESCO historic ensemble of Rabat inscribed in 2012.