Copenhagen's celebrated theme park and gardens.

Inside this church, a monument honors the first burial site of the famed philosopher.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

An unusual vending machine designed to support mourners during funeral ceremonies at Zurich's largest cemetery.

Museum dedicated to wax representations of disfiguring diseases.

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

Medical history with an amazing, if frighting, collection of wax diseases on display.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

A 19th century artistocrat's mansion, turned into a library, hidden in a modern library.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A wunderkammer of mysterious objects and stories.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A historic building houses one of the most important archaeological institutes in Europe.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

An American ghost town hides along a side street in Scotland's capital.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

This museum is dedicated to the most famous Irish writers in history.

This museum inside Amsterdam's largest cemetery explores how people deal with death.

A curious collection dedicated to human and animal anatomy and pathology.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

A floating cat sanctuary on an Amsterdam canal.

A magical museum of fairy tale treasures near Cyprus' buffer zone.