2019-09-15T07:00:00Z Paris is especially known for its museums and architectural landmarks. The Louvre was the most visited art museum in the world in 2018 with 10.2 million visitors. The Mus?e d'Orsay, Mus?e Marmottan Monet and Mus?e de l'Orangerie are noted for their collections of French Impressionist art, the Pompidou Centre, Mus?e National d'Art Moderne has the largest collection of modern and contemporary art in Europe, and the Mus?e Rodin and Mus?e Picasso exhibit the works of the two noted Parisians.
The historical district along the Seine in the city center is classified as a UNESCO Heritage Site and popular landmarks in the city center include the Cathedral of Notre Dame de Paris and the Gothic royal chapel of Sainte-Chapelle, both on the ?le de la Cit?, the Eiffel Tower, constructed for the Paris Universal Exposition of 1889, the Grand Palais and Petit Palais, built for the Paris Universal Exposition of 1900, the Arc de Triomphe on the Champs-?lys?es and the Basilica of Sacr?-Coeur on the hill of Montmartre.
Paris is often referred to as the City of Light both because of its leading role during the Age of Enlightenment and more literally because Paris was one of the first large European cities to use gas street lighting on a grand scale on its boulevards and monuments.
Gas lights were installed on the Place du Carousel, Rue de Rivoli and Place Vendome in 1829. By 1857, her grand boulevards were lit. By the 1860's, the boulevards and streets of Paris were illuminated by 56,000 gas lamps.