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 17th century for his first opera; then, taking advantage of Moliere's death in 1673, he was able to expel Moliere's actors from the theater of the Palais-Royal and take it over for himself. It served as the main Paris opera house until it burned on April 6, 1763. The Petit-Bourbon theater next to the Louvre also continued to present operas until it was demolished in 1660 to make room for the new colonnade of the Louvre, but it was replaced by a large new hall, the Salle des Machines, next to the Tuileries Gardens. This hall had very poor acoustics, but it