This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

Imagine playing a version of Legends of the Hidden Temple, but with a distinctly Southern Gothic flare.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

The personal charnel house of Anton Bruckner.

Mysterious painted skulls in Moravia.

Thousands of well-dressed mummies below a monastery.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

One of the largest ossuaries in Spain is packed from floor to ceiling with bones.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

This German bone house contains the remains of some 20,000 souls.

A house of bones — but nobody is quite sure to whom they belong.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

In 1830, cemetery workers in Cham unearthed a chamber housing thousands of skeletal remains from the 13th century, which can still be viewed today.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

Underneath this small church are 15,000 bones, arranged by an obsessive academic.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

This artificial cave looks like something out of a fairytale.

A mocking tribute to the past and modern leadership of Prague.