A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

Somewhere there is a giant who can no longer poop, but now travelers can stay inside his anus.

Hiding the longest subterranean river known in the world.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

This small Slovenian town has become a magnet for microbreweries.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

Medical museum that houses most notably the taxidermied remains of Vladimir Demikhov's famous two-headed dog experiment.

A black cat protests the City Guild in Riga's Old Town.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

This Stockholm light tower can be controlled by anyone with a smartphone.

It houses the remains of a 17th-century version of the Titanic.

Sweden's "good old days" painstakingly re-created in a model village.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

A statue honors the children who fought Nazis in Poland.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

Hamburgers are intensely proud of their tunnel beneath the river.

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

These rare statues are one of the few remaining material witnesses to Old Prussian culture.

A haunting deserted hotel is a favorite with artists and photographers.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Countless stories attempt to explain Poland's mysterious J-shaped trees.