Come in, light some incense, and ignore the live snakes around you.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

Cat art as far as the eye can see.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

The site of Austria's biggest concentration camp now honors its victims.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

Ride a dragon train into a world of dwarves.

Go inside to really appreciate this 500-year-old technological masterpiece.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

A floating cat sanctuary on an Amsterdam canal.

Europe's official "zero-level," the equator of elevation.

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

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

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

This historic Amsterdam bar used to accept sailor's monkeys as payment.

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

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

A hands-off space for graffiti artists to hone and display their skills.

Eighty million natural history specimens call this gargantuan museum home.