TriPod: New Orleans at 300 returns with a story of the city’s above ground cemeteries, and those working behind the scenes. The many above ground cemeteries around town are hard to miss. And they are crowded. These above ground tombs, built since the 19th century to keep coffins away from the city's high water table, are like apartment buildings full of the dead, with multiple people in each tomb. Add to that the tour groups that cross paths as guides tell stories that keep the crowds coming, so