A top secret Cold War bunker hidden beneath a Latvian spa facility is now open for tours.

This unique eatery offers a taste of Estonia's "Onion Route."

A wealthy aristocratic family built this Disney-worthy, fairy-tale castle.

This atmospheric spot in Pärnu's historic old town is located in a 17th-century almshouse.

This striking structure is the Socialist-modernist centerpiece of a former Soviet spa resort.

Tiny communists hammer away on the Olomouc Astronomical Clock.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

A Czech shoe magnate built his office inside a giant elevator.

Hundreds of "animals" created from scrap metal, alongside a collection of other oddities.

In the town of Třeboň, carp is king.

Be(w)ar(e) the moat around this historic Czech castle.

The oldest skyscraper of Europe now stands dwarfed by the surrounding structures.

An early 19th-century English style garden hidden in the Rotterdam cityscape.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

A bridge that has seen many reiterations over its lifetime.

The site of a strange super top-secret military experiment during WWII on a remote Canadian lake.

Every fall this lake mysteriously drains, like a bathtub with the plug pulled out.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

Fossils, railroads, and waterfalls!

The granite head appears to be deep in thought and half buried in the ground.

Nordic giants resurrected from the sea and restored to their former greatness.

This Denmark theme park is part family attraction, part experimental archaeology project.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.