Where royalty waits in the height of luxury.

Devious political maneuvering and four ancient, working telescopes are central to the world's second-oldest observatory.

A statue of the second-tallest Dutchman in history.

Unchanged for centuries, this medieval library keeps its books in chains.

A luxury hotel housed in a former 15th century Gothic church.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

Two gravestones clasp hands over the religious divide.

This vast collection of smoking pipes from across the world spans centuries.

This medieval castle was painted pink as part of a now-abandoned children's theme park.

This bronze statue of Martin Luther King was placed in the park without permission.

Strange secondhand shop showcasing taxidermy and oddies

This historical Netherlands fortress still bears the marks of its single siege.

A monument hidden in the woods built in 1938 as a getaway for a Dutch museum curator.

Survival capsules find a second life as a unique hotel.

Pull up and have a drink at a museum filled with hundreds of years worth of shipwreck artifacts.

Tucked away in the Leiden city hall are a group of works by famed artist MC Escher.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

The ruins of a medieval castle that once belonged to one of the most powerful families in the Netherlands.

The last of Amsterdam's original sea level markers remaining in place.

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

A late-medieval Dutch castle with trick fountains in its whimsical water gardens.

The tallest waterfall in the Netherlands is a lovely, stepped feature that is only 50 feet tall.

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

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.