The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Surreal riveted sea forts once protected the Kent shores from German attack.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Commonly acknowledged as the only public monument to the Devil himself.

The final resting place of the great navigator, or maybe his brother.

This Navarrese cave's history of witchcraft and pagan ritual is not just embraced, but recreated each year.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

Wonderland replication in progress by one persistent man.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Invisible bridge parts the waters, invoking biblical images and preserving the ominous feel of an ancient moat.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

This abandoned Belgian fortress is purposefully being left to nature.

Climb inside an iron crystal magnified 165 billion times its normal size.

This ghost town in Belgium will lose its street art when it ceases to exist.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Hans Christian Andersen for the postmodern world.

A natural wonder in south Denmark.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

Six beautiful wooden giants are hidden around Copenhagen.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.