This imposing tower named after the mythical sword of King Arthur is considered the tallest freestanding climbing wall in the world.

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

The former headquarters of history's oldest megacorporation.

Incredible labyrinth of man made caves.

A collection of biblical memorabilia.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

A beautiful maze marks where three countries meet.

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

The only bicycle museum in the Netherlands charts the invention of the now-ubiquitous two-wheeled machine.

Preserving the research tools, unexpected inventions, and odd collections of generations of college professors.

A set of beech hedges planted in the 19th century forms a tunnel that takes on a different appearance in every season.

The Rozenberg wind wall in South Holland makes for smooth sailing through the Calandbrug canal.

This small museum located under the famous cube houses, is home to some 30,000 chess pieces.

Nestled in the woods lies this land art project: a hybrid between park, maze and natural monument.

This museum is filled with an eclectic collection of unique inventions.

This enormous storm barrier is one of the largest moving structures on Earth, with each arm taller than the Washington Monument.

This former hydraulic laboratory is now a woodland dotted with old engineering models.

Repurposed space and ultra-modern construction collide to create this geometric wooden spectacle.

Yup, that's a 330-foot yacht passing over the highway.

The world's first floating farm is staffed by one human, three robots, and 35 cows.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.