BE CAREFUL! Guided tours only!
Local insight: The New Orleans cemeteries are a fantastic experience that I highly recommend, however DO NOT GO ALONE! Take only a guided tour (which can be pricey), or go with a large group of people. Without a guided tour, you probably will not know what to see anyway, and the tour guides will cover the history and point out the more prominent deceased to you. Never go at night, unless part of a tour. The neighborhoods simply are not safe around either of the St. Louis Cemeteries, and the large above ground tombs give the real life ghouls plenty hiding spaces to attack an unsuspecting tourist. Not trying to scare anyone away, but please be cautious.