1. Only half the collection of the Louvre is on display. 2. In addition to being a museum, the Louvre has also been a prison. 3. The present palace was built to display the royal art collections. 4. After the French Revolution, it became a public museum. 5. In 1989 I.M. Pei designed the glass pyramaid for a new entrance. 6. Pei's design actually has 673 panels. 7. The new entrance was required to handle the growing number of visitors.
