The charming storybook building now houses a small police museum.

Dedicated to a song so popular the request to "Play Shoreline" became part of Swedish culture.

The world's biggest floating museum in Gothenburg, Sweden.

This innocuous-looking button may have been used to assassinate a king.

Micro-nation based around a nine-story high illegally built tower.

This trio of stone spires claims to be the only preserved medieval execution site in Europe.

Legend has it that this large rock maze in Sweden was created as punishment by the daughter of a wealthy captain.

This simple roadside art installation ended up sparking a folk art movement and a controversy of international proportions.

Inside this church, a monument honors the first burial site of the famed philosopher.

One of the world's first dedicated bank buildings in the world is now the oldest one.

Several cannonballs of mysterious origins decorate two buildings in Stortoget's main square.

This small museum nestled inside a souvenir shop is dedicated to Sweden's most well-known toy.

Hidden in plain sight, Sweden's official ordnance datum is now abandoned.

This centuries-old rooster survived a devastating fire.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

This small statue hints at the incorrect origins of the lush landscape park surrounding it.

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

A 20th-century picture show in 3-D.

An 11th-century runestone decorates the halls of Terminal 2 of this Scandinavian travel hub.

One of the world's largest collections of medieval religious art.

A hidden art gallery in an abandoned Warsaw fort.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

An artificial date palm stands as a memorial to Warsaw's Jewish community.