Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

Old Danish castle immortalized in Shakespeare's Hamlet.

Strange secondhand shop showcasing taxidermy and oddies

A bridge that has seen many reiterations over its lifetime.

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

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Elegant marble and old vaults fill this historic Dutch bank turned office space.

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

A huge teapot illuminates a home for the elderly.

A statue of the second-tallest Dutchman in history.

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

A mural recalls a fictional woman who once lived at 23 Quai du Commerce, 1080 Brussels.

Meet the bronze beloved pet to a family of famous peeing statues.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

An unsettling sculpture of a boy hanging out in a street in Ghent has been baffling visitors for years.

A beer pipeline runs beneath Bruges.

Christ's blood allegedly preserved in a Belgian town.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

This gruesome biblical parade celebrates the one day a year that a bit of Jesus' blood turns to liquid.