One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

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

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

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

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

Dramatic river bend surrounds a natural red-rocked pedestal.

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

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

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

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

These fantastically named natural pools look like something out of a Scottish myth.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

On the Oregon coast there is a natural hole that seems to be draining the sea.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

Rippling sand dunes frozen in the Arizona rock.

An exquisite tunnel of cascading flowers.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

An artsy hidden staircase leads to breathtaking views of San Francisco.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.