An off-the-beaten-path boutique stuffed with an eclectic collection of upcycled goods.

Incredible labyrinth of man made caves.

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

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

The attic of a four-century-old canal house hides a clandestine church.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

Conspiracy theories and occult legends surround this mysterious natural rock formation.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

Science meets wall art to highlight the beauty of famous mathematical equations.

The largest flower auction house in the world.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

Visit the ancient, mysterious Roman catacombs ... in the Netherlands.

Go inside a revolutionary, cage-less zoo where 35 species live and some of them roam free alongside their human visitors.

A miniature city, once ruled by the Queen of the Netherlands.

A seven-century-old jail tells a not-so-pleasant history of crime and punishment.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

The world’s first interactive human body museum also serves as a chair for a giant orange man.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.