Marseilles, a port city in southern France, has been a crossroads of immigration and trade since its founding by the Phoenicians in 600 B.C.E. It’s a place of tranquil squares and stepped streets, bustling 19th-century avenues and souklike markets. At its heart is the Old Port, where fishmongers sell their daily catch along the boat-lined quayside. La Canebière, the main thoroughfare, runs east from here.
Population: 850,000, about the size of Indianapolis
Heat: 2 (11/30/15)