At the end of the 1700s, millions of bones were transferred to these underground quarries when their previous resting place, the Cimetiere des Innocents, became overcrowded. The Catacombs also served as French resistance headquarters during World War II; the Nazis never discovered their secret use. Nowadays they are known for highly illegal (and hence popular) parties, happenings and black Masses, but more than 200,000 people also enjoy organized legal visits. Take along your own flashlight. Daily except Monday 10 am-5 pm (last entry at 4 pm). 7 euros adults. 1 Place Denfert-Rochereau (14th; Metro Denfert-Rochereau), Paris. Phone 01-4322-4763. http://www.catacombes.info.
