Amsterdam's former hotspot for public executions and dissections.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

A 13th-century Swiss castle houses a collection of artifacts from the Polish diaspora.

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

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

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

A permanent exhibition honors Queen, which recorded seven albums at the casino-based studio, including “Under Pressure” with David Bowie.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

A giant bug impaled on a 75-foot-tall needle.

This floating sculpture of ice is a poignant reminder of nature's power.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Banksy's image of a naked man dangling from the window of a sex health clinic.

The largest caravanserai in Cyprus also includes amazing examples of Ottoman architecture.

This one-of-a-kind archeological site is home to strange prehistoric ruins, the original use of which is still a mystery.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

One of England's most famous churches hides a pair of little known architectural treasures.

This skewed English house has looked like it's going to fall over for centuries.

Constructed during the 7th century this is one of the oldest largely intact Christian churches in England.