Flaming barrels of tar race through these village streets on Bonfire Night, a tradition that dates back centuries.

These medieval tunnels provided water to the city above through centuries of civil war and plague.

A house of bones — but nobody is quite sure to whom they belong.

Giant naked man on a hillside.

A giant white horse drawn on an English hillside may not have been intended to be a horse at all.

The mouldering remains of a disgraced British children's icon are hidden in the brush of a public park.

A unique waterfall that some believe attracts the fairfolk.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

This museum houses an imposing skeleton army comprised of creatures great and small.

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

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

The "dragon babies" of southeastern Europe.

A miniature train-ride through Slovenia's largest cave system.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

An Art Nouveau building covered in animal gargoyles and grotesques.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

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

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

This former quarry is now a vibrant labyrinth of magical in situ sculptures.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.