The Musée du Louvre, one of the world's largest museums, is a Paris landmark. It is the most-visited museum in the world, attracting about 10 million visitors every year. It boasts numerous priceless artworks such as the Venus de Milo, the Nike of Samothrace and the Mona Lisa, the most popular attraction at the Louvre. If you want to see just how crowded the museum is, go see the Mona Lisa. It is too hard to find a spot to see or take a photo of the picture because so many people are packed into the gallery.