Mont Saint-Michel, Unique Island: There are only 44 residents and 3 million guests
Mont Saint-Michel is a rocky tidal island and a commune in Normandy, France. The population of the island is 41, as of 2006. The island has been a strategic point holding fortifications since ancient times, and since the 8th century AD it became the seat of the Saint-Michel monastery, from which it draws the name. The Mont-Saint-Michel and its bay are part of the UNESCO list of World Heritage Sites. More than 3,000,000 people visit it each year.
In prehistoric times the bay was land. As sea levels rose, erosion shaped the coastal landscape over millions of years. Several blocks of granite or granulite emerged in the bay, having resisted the wear and tear of the ocean better than the surrounding rocks. These included Lillemer, the Mont-Dol, Tombelaine (the island just to the north), and Mont Tombe, later called Mont-Saint-Michel.