A visionary precursor to the Internet made of index cards.

Only museum in the world devoted to bookbinding and book arts holds a permanent collection representing five centuries.

This historic Art Nouveau townhouse was the former home of the son of a famous chemical inventor and industrialist.

One of the deepest indoor swimming pools in the world.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

The tiny Belgian town's ancient version of Mardi Gras involves eerie wax masks, sticks for warding off evil, and ostrich plume hats.

Tintin's creator is celebrated in an immersive museum that's an astounding work of modern art.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

Every winter, this former planetarium is transformed into a massive, brightly-lit Christmas ornament.

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

Incredible labyrinth of man made caves.

Live out your childhood construction fantasies in this one-of-a-kind gyrating hotel.

A Netherlands hotel where you can sleep inside a wine barrel.

Walk through the history of a Dutch truck manufacturer, from 1928 to today.

An interactive museum dedicated to preserving and sharing the history of the home computer.

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

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

Survival capsules find a second life as a unique hotel.

Strange secondhand shop showcasing taxidermy and oddies

Rumored to have been frequented by Vincent van Gogh, it's the only remaining genever producer in the Hague.

A museum-like shop that has been producing clogs, brushes, and ropes for nearly 200 years.

A dream-like maze full of strange art, surreal spaces, and fantasy landscapes to get lost in.

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

In the Netherlands, one of the world's largest private car collections can be found.