Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

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

The Netherlands is home to a bridge printed out of reinforced concrete.

Drive past the giant fruit sculptures and up to the window for a menu of fruity treats.

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

This stately council chamber hasn't changed since 1545.

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

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

The bridges portrayed on EU currency aren't fictional anymore.

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

This disused VLF radio station is no longer in service but the surrounding town still bears its name.

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

Strange secondhand shop showcasing taxidermy and oddies

A modern reimagining of a medieval city gate.

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

Lumps of significant stone from around the world surround a flaming monument for peace.

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

While most bridges allow roads to pass over water, this one allows water to pass over a road.

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

A grassy pyramid named after a French battle.

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

This gigantic monument hidden in the woods was built to thank the Dutch for sheltering Belgian refugees during World War I.

Building Men of War and Indiamen from Holland's Golden Age.