The majority of the highest mountain in Poland is actually located in a different country.

A monument to the bloody fight against fascism in Slovakia during World War II.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

The deepest metro station in the world.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

The former headquarters of history's oldest megacorporation.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

Established in 1638 to battle the Black Death, this botanical garden is a treasure trove of rare flora.

For the holidays, the tallest broadcasting tower in the Netherlands turns into one of the world's tallest Christmas trees.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

Atop this former dutch railway office sits an interstellar work of art.

One of Hollywood's most iconic actresses was born in an upscale Brussels neighborhood in 1929.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

This small chapel built into rock is the oldest place of worship in Luxembourg.

The official motto of Luxembourg reminds passersby of the Luxembourgish commitment to their national identity and sovereignty.

This old wooden funicular railway leads to a cemetery in the forest.

It's good luck to be mocked by this monkey.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

New England's tallest light house stands on an island with a history of cannibalism and death.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

The floating gallery illuminates the heart of Québec City's arts district.