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.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

A snapshot of the city's fascinating voodoo culture.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

Mysterious 500-year-old tapestries depict a unicorn hunt.

A way to take your secrets to someone else's grave.

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

Abandoned concert venue legendary for its rock counterculture.

The petrified remains of 150-million-year-old trees can be seen in and among the houses of the local villagers.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

A research lab and hands-on museum where visitors can experiment with retro technology.

What happened to the three lighthouse keepers who vanished from this place remains a mystery over a century later.

This traditional Japanese-style house doubles as one of James Turrell's colorful works of art.

An abandoned Byzantine fortress and notorious prison.

A historic cave in Scotland once served as a hiding place for a famous Covenanter.

Elegant marble and old vaults fill this historic Dutch bank turned office space.

Nestled in the heart of a Texas town is a dreamy secret garden dating back to the 1940s.

This secluded walking trail is a hidden gem of a Pittsburgh park.

Nineteen ancient rock-cut Buddhist caves can be found on the outskirts of Mumbai.