This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

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

The largest flower auction house in the world.

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

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

A miniature city, once ruled by the Queen of the Netherlands.

Go inside a revolutionary, cage-less zoo where 35 species live and some of them roam free alongside their human visitors.

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

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

Incredible labyrinth of man made caves.

A market built atop boats is one of the few floating holiday markets in Europe.

A grassy pyramid named after a French battle.

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

Amsterdam's former hotspot for public executions and dissections.

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

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

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

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

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

Colorful and chaotic stacked hotel in North Holland.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

A beautiful maze marks where three countries meet.

A beautifully eclectic mix of architectural styles.