Louvre Pyramid: Built in 1989, this glass pyramid which looms at the front entrance to the Louvre in Paris, was an instant source of controversy. Some found the futuristic glass structure set amid the ancient Louvre a desecration. Others praised its mix of the classical style with the ultra modern. A myth sprang up that the number of glass panes was 666, a false factoid exploited by Dan Brown in The Da Vinci Code
