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

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

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

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

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

Incredible labyrinth of man made caves.

This miniature take on the Kremlin is one Dutch man's retirement project.

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

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

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

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

Oldest Museum of the Netherlands is a true cabinet of curiosities.

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

A beautiful maze marks where three countries meet.

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

Peek through a transparent pyramid and drink in the mountain made of books.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

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.

Cat art as far as the eye can see.

A floating cat sanctuary on an Amsterdam canal.

The world's only museum devoted to the wonders of fluorescence.