A one-of-a-kind collection of a unique medium.

Try not to get slimed in Tribeca.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

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

Hot springs monkey spa in the middle of Hell's Valley.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

France's most famous cemetery, with some of its most curious tombs.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The fairy tale castle of the "fairy-tale king."

An enormous, inside-out glass globe built in 1935.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Two graffiti towers stand like ghosts of Vancouver's World War II-era defensive outpost.

This rare example of Vancouver's Victorian past was the home of one of the city's first bookbinders.

A renegade art installation in a small Vancouver park is now officially sanctioned by the City Parks Department.

The colorful, smiling concrete silos of Vancouver.

The collection of signage remembers the midcentury pushback against the new neon light.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

Housing a morgue, rare and confiscated weapons, and autopsy remains, the Vancouver police museum displays the dark side of Canada.