Left by the Devil, an ancient quarry or just plain old erosion, this enigmatic rock pillar rises 28 feet from the hillside.

A 600-year-old mini shrine guarded by a sword-wielding knight hides in a crumbling cliff face.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

This ruined 15th-century hermitage is steeped in myth and mystery.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

Ship-sized kinetic sculptural fantasy.

A 16th-century horror show built in a lovely Italian garden.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

Legend says this little-known stone circle is formed from people petrified as punishment for dancing on the Sabbath.

6000-year-old site covered in more than 50 megaliths.

A group of glacial erratic boulders are improbably balanced on white limestone pedestals.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

An English artist has turned an unassuming ex-council house into a time-lost house of mystery.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

An unusual round church in London with a Templar past.

An enormous dragon scales the walls of this 17-story temple.

One of the oldest libraries in England, and one of the last of the great medieval chained collections.

The fantastic charm of England's oldest botanical garden has made it a place of writerly inspiration for centuries.

A stone obelisk towering over the surrounding countrysides beckons hikers across the rolling moors.

This hospital once pioneered the use of electroencephalograms, but fell into maltreatment, abuse, and eventual abandonment.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.