This cairn marks the only place where Central European Time, Eastern European Time, and Further-eastern European Time meet.

This disused church, left to the elements of the Arctic Circle's forests is open for exploration.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

Amsterdam's former hotspot for public executions and dissections.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Museum preserving torture methods from the past.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

These rustic holiday homes are made from discarded fishing boat hulls.

Underneath a chalk hill in France lies what Hitler hoped would be the underground launching base for a devastating new weapon.

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

A cluster of granite granaries perched on stilts.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

The corpse bride of Portugal.

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

Picturesque intersection of witchcraft and ancient Christianity.

A unique seaside cave where Aleister Crowley faked his own death.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

This small chapel is built of human bones and decorated with a golden skeleton.

This unreal Portuguese palace looks as though it's made from a pile of different castles.