This micronation's flag honors its favorite drink, Kaffegöken, or "cuckoo-coffee."

This sign marks the entrance to a tiny proto-state within the small country of Moldova.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

A series of playful yellow penguins share a serious message about the environment.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

The world's greatest slide descends 18 stories from this looping mountaintop viewing platform.

This charming wooden church was disassembled and moved not once but twice before settling in this Prague garden.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

A Jenga-style cylindrical tower of books that appears to go on forever.

The decaying remains of a once-luxurious Soviet spa town.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

Small church on top of a huge rock column.

The forest that inspired Winnie-the-Pooh's Hundred Acre Wood can be found outside London.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

Museum about life, death, and cannibalism in the Stone Age.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

On this stunning Scottish island, you can walk in the footsteps of dinosaurs.

The heads of two giant mythological water horses honor Scotland's horselord past.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.