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

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

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

A true Valhalla for cactus and succulent lovers.

A public urinal so pretty, it was declared a national monument.

A beautiful maze marks where three countries meet.

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

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

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

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

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

A UFO-shaped event building originally intended to be a science museum showcasing the future.

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

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

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

A former plague hospital turned medical museum.

A unique collection of gilded age mechanical pianos.

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

A floating cat sanctuary on an Amsterdam canal.

Israel's first dedicated natural history museum is home to 5 million specimens and still growing.

This "Jewish Sistine Chapel" was designed to reinvigorate Judaism's artistic legacy but was almost lost to misguided restoration.

The home of the Dead Sea Scrolls is an abstract modernist dream.