The LOUVRE is a French gallery located in Paris, France. It is the world's largest art museum and a historic monument. The museum houses some of the most famous works of art in the world, including the Mona Lisa and the Venus de Milo. It was originally built as a fortress in the late 12th century and was later converted into a royal palace. In 1793, it was opened to the public as a museum. Today, it is one of the most visited tourist attractions in the world.