The world's only museum devoted to the wonders of fluorescence.

A fantastical bed and breakfast with magically unique rooms.

A Museum of Psychiatry in a still-operating mental institution.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

This colorfully-painted tunnel links two distinct parts of a historic neighborhood.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

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

This old KLM airplane cut into three parts was transformed into an eclectic airport gift shop.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

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

This basement museum explores the art and artistry of fascism.

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

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

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

Unchanged for centuries, this medieval library keeps its books in chains.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

Amsterdam's former hotspot for public executions and dissections.

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

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