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 Middle Ages of the French Kings in the Abbey of Saint-Denis. The sculptor Jean de Liège, from Flanders, sculpted images of Charles V and Jeanne de Bourbon for the château of the Louvre, as well as several tombs for members of the royal family at Saint Denis. Stained glass, or "vitrail", the use of small plaques of colored glass joined by lead to depict historic events and figures, was not invented in Paris. It was recorded in texts in other parts of Europe in the late 9th century, but in Paris of the 12th and 13th centuries, it reached new heights of