The Louvre Pyramid is made up of 673 glass panels: 603 rhombus-shaped panes and 70 triangular panes.
Designed by Chinese-American architect I. M. Pei, the main pyramid stands in the Louvre’s Cour Napoléon and serves as the museum’s principal entrance. It was completed in 1989 as part of François Mitterrand’s Grand Louvre modernization project, creating a large underground visitor hall beneath the courtyard.
The count is often confused because an early rumor claimed the pyramid had exactly 666 panes, a number associated with the “number of the beast” in the Book of Revelation. That figure was repeated in some contemporary publications and later popularized by The Da Vinci Code. The Louvre’s confirmed count is 673.
The main pyramid is about 21.6 meters high, with a square base roughly 34 meters wide. Three smaller pyramids surround it, while an inverted pyramid lies beneath the nearby Carrousel du Louvre. The quiz answer refers to the main pyramid, not every glass element in the wider complex.