The most famous structure in this shape inspired an addition to Chicago's (*) Museum of Science and Industry; that structure serves as the main entrance to a certain Parisian attraction.
A house named for this shape and surrounded by see-through walls was designed by Mexican architect Juan Carlos Ramos. Six of these shapes form the Nima Sand Museum, the tallest of which houses the world's largest hourglass. Norman Foster's firm designed one of the largest structures based on these shapes, Kazakhstan's Palace of Peace and Reconciliation. The most famous structure in this shape inspired an addition to Chicago's (*) Museum of Science and Industry; that structure serves as the main entrance to a certain Parisian attraction. For 10 points, which shape was iconically added to the Louvre by I.M. Pei?
A house named for this shape and surrounded by see-through walls was designed by Mexican architect Juan Carlos Ramos.
Pyramid