A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

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

Controversy surrounded the creation of this anti-fascist statue.

This declassified Cold War bunker hosts a large collection of Swedish aircraft.

Once the center of power for the region's various factories.

Copenhagen's celebrated theme park and gardens.

Catacombs turned marketplace.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

A town saturated in Italian rationalist architecture was once marshland drained by Mussolini.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

A colossal strolling Pinocchio that was greeted with more outrage than whimsy.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

Hindu temple of the dead home to hundreds of long-tailed macaques.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

Northern Ireland's Brobdingnagian stepping stones.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A six-ton wedding present for the King of the Scots.

A sweet symbol marks the place where torturous executions were once carried out.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.