It is an iconic historical landmark in the Normandy region of France, located on a rocky island about 1 kilometer from the coast. Renowned for its unique natural landscapes and rich historical and cultural heritage, it has been listed as a World Cultural Heritage Site by UNESCO. The history can be traced back to the 8th century when a monastery was built on the island, which later developed into an important religious center. The monastery complex on the island includes Romanesque, Gothic, and Renaissance architectural styles, and is an outstanding representative in the history of French architecture. Mont Saint Michel is not only a destination for religious pilgrimage, but also an important location for military defense.