Finished this one this afternoon. It's Mont-Saint Michel, an island in the north of France. It's located 1 km from shore and was created as a result of erosion. A natural land bridge connects the island to the mainland and the tides go in and out very quickly. I visited it a few summers ago and was blown away. The approach is amazing. Built atop the mount is the Abbey and church. It takes about 20 minutes to reach the top via windy cobblestone streets. Sheep graze in the fields on the mainland and the area is famous for their lamb which is naturally salty due to the grass that grows by the ocean. It's an amazing place.