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,
Art in Paris Central des Arts in the Grande Galerie was opened to the public. Under Napoleon III, Louvre was further enlarged, and as completed, it has two main quadrilaterals and within two large courtyards. It is considered to possess one of the richest art collections in the world. Its collection is now mainly European art up to the Revolutions of 1848 as paintings of later date have been moved to the Orsay Museum that opened in 1986. Some of the master pieces held by the museum are of the Italian Renaissance painters, and Flemish and Dutch painters of the Baroque period. Some