Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

The site of good faith and good nature in the fictional world of Kcymaerxthaere.

A wunderkammer of mysterious objects and stories.

An astonishingly accurate water clock that doubles as an hourly spectacle in this Berlin shopping area.

Blending modern art with Baroque architecture, this wondrous mosaic grotto serves as the late artist's final creation.

This gilded emblem was once stolen by a Cookie Monster impostor, who demanded a charitable ransom for its return.

A helicopter memorial commemorating what was once the only way to access this West Berlin exclave.

Memorial to the victims of the Holocaust in Serbia.

This unusual piece of Renaissance art depicting the bodily horror of crucifixion and skin disease may have been inspired by fungus-induced hallucinations.

There has been an astronomical clock on this spot since the 14th century.

A pink sandstone column once used in ancient times to measure one's belly after a night of debauchery.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

Built on a medieval synagogue, this church has a burial crypt, tunnel system, and Jewish ritual bath hiding deep underneath.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

The final resting place to 300 Victorian-era pets hides inside the city park.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

Northern Ireland's Brobdingnagian stepping stones.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

The world's largest collection of witchcraft regalia.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.