The final resting place of New Orleans' most famous voodoo priestess.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Northern Ireland's Brobdingnagian stepping stones.

The first declared National Monument in the United States.

A snapshot of the city's fascinating voodoo culture.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A walk through the historic city center, under the streets of Seattle.

Monasteries on rock pillars, once accessible only by frayed ropes.

Enormous lake at the bottom of a unique cave system.

A battle between nature and architecture in the Cambodian jungle.

Odd outsider art installations surround a Gold Rush-era ghost town.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

Macabre astrological automaton clock dating to the late 1400s.

The world’s first penitentiary, meant to be humane, drove men insane.

A church of bones, decorated with 40,000 human skeletons.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A crumbling hospital from the 1850s on Roosevelt Island.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

Avoid gangster interaction while window-shopping.