The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

The giant scales in this museum can still tell if someone is one of the devil's brides just by weight.

Amsterdam's former hotspot for public executions and dissections.

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

Incredible labyrinth of man made caves.

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

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

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

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

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

The world's oldest Jewish library was founded by Sephardic Jews in 17th century Amsterdam.

A former plague hospital turned medical museum.

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

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

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

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

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

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

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.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.