Paris, the capital city, is the third most visited city in the world.[6] Paris has some of the world's largest and renowned museums, including the Louvre, which is the most visited art museum in the world, but also the Musée d'Orsay, mostly devoted to impressionism, and Beaubourg, dedicated to Contemporary art. Paris hosts some of the world's most recognizable landmarks such as the Eiffel Tower, which is the most-visited paid monument in the world,[7] the Arc de Triomphe, the cathedral of Notre-Dame or the Sacré-Cœur. The Cité des Sciences et de l'Industrie is the biggest science museum in Europe.[8] Located in Parc de la Villette in Paris, France, it is at the heart of the Cultural Center of Science, Technology and Industry (CCSTI), a center promoting science and science culture. Near Paris is the Palace of Versailles, the former palace of the kings of France, now a museum