Museum of Science and Industry (Chicago) of Progress event. For years, visitors entered the museum through its original main entrance, but that entrance became no longer large enough to handle an increasing volume of visitors. The newer main entrance is a structure detached from the main museum building, through which visitors descend into an underground area and re-ascend into the main building, similar to the Louvre Pyramid. In 1983, due to increased attendance, the museum started construction of its underground parking lot, located in three underground levels below the front lawn. Construction of the underground parking lot was finished in the 1990s. For over 55 years,
Paris in the 18th century Robert; Pierre-Paul Prud'hon, whose work combined classicism and romanticism; and a major neoclassical sculptor from the earlier generation, the sculptor Jean-Antoine Houdon, famous for his busts of George Washington and Voltaire. The idea of making the Louvre into an art museum had first been proposed in 1747 by Lafont de Saint-Yenne and supported by Diderot in 1765 in the article on the Louvre in the "Encylopedie". The idea was accepted by Louis XVI, who in 1789 began work on the Grand Gallery of the Louvre. The Revolution intervened, and on 27 July 1793 the Convention decreed the creation of a