The Louvre received 2.7 million visitors in 2020, a drop of 72 percent from the 9.6 million visitors in 2019.  The Louvre was closed for 150 days during the year because of the Covid-19 virus, but it still retained its position as first in the list of the Most visited art museums in the world.  Its treasures include the ''Mona Lisa'' (''La Joconde''), the Venus de Milo statue, ''Liberty Leading the People''.  The second-most visited museum in the city in 2020, with 912,803 visitors, was the Centre Georges Pompidou, also known as Beaubourg, which houses the Musée National d'Art Moderne The fourth most visited Paris museum, in a building constructed for the Paris Universal Exhibition of 1900 as the Orsay railway station, was the Musée d'Orsay, which had 867,274 visitors in 2020, a drop of 76.2 percent from 2019. The Orsay displays French art of the 19th century, including major collections of the Impressionists and Post-Impressionists. The Musée de l'Orangerie, near both the Louvre and the Orsay, also exhibits Impressionists and Post-Impressionists, including most of Claude Monet's large ''Water Lilies'' murals. The Musée national du Moyen Âge, or Cluny Museum, presents Medieval art, including the famous tapestry cycle of ''The Lady and the Unicorn''. The Guimet Museum, or ''Musée national des arts asiatiques'', has one of the largest collections of Asian art in Europe. There are also notable museums devoted to individual artists, including the Musée Picasso, the Musée Rodin and the Musée national Eugène Delacroix.