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 many of the streets were closed with large chains, kept in drums at the corners. They were dimly lit by a small number of oil lamps. The royal residence was usually either the Louvre or the Château of Vincennes, just east of the city. The courts and royal administrative offices were in the old palace on the île de la Cité. The offices of the Provost of Paris, the King's governor, were in the Châtelet fortress, which also served as a prison. The city administration, run by the Provost of the Merchants, was in the Hôtel de Ville. The commercial