17. Menton, France

Home of the Fête du Citron, one of the French Riviera's premier annual events alongside the Cannes Film Festival and Monaco Grand Prix. It's the world's largest lemon festival, featuring large artworks made entirely from citruses. Until the 1930s, Menton was Europe's biggest producer of lemons. It remains the only lemon-growing region in mainland France, producing 150 tonnes annually, of which 145 are used for the festival. Menton has vowed to keep its lemon industry going until the bitter end.

Notably Menton is only a 15 minute train ride from two different foreign countries: Monaco and Italy. All domestic trains out of Menton must pass through foreign territory.