A geological wonder where the French Alps spill into the Mediterranean Sea, the Côte d'Azur—often known in English as the French Riviera—stretches from the Italian border to urban Toulon. Beaches, quaint fishing ports, and opulent architecture line the coast. The mention anywhere in the world of Nice, Cannes, Monte Carlo, St. Tropez, Antibes, or Juan les Pins evokes glamour and a sense of nostalgia. Coastal towns are strung along a chain of dramatic hills, woven with vineyards and olive groves. The pristine mountains, too, are studded with villages and offer endless opportunity for adventure.