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

Gargoyle head that brings good luck.

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

A surreal statue honoring Prague's favorite literary son.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Macabre astrological automaton clock dating to the late 1400s.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

There are thousands of tributes and memorials to the King, but none quite like this one in a Kraków city park.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

The most loyal of little dogs, or a Victorian era publicity stunt?

360° views of the city plus five floors of optical illusions and hands-on science.

The strange behavior of a tween led to allegations of witchcraft and a curse being placed on anybody within earshot.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This stately estate house features a tower covered in a bright, modern mural.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

A church of bones, decorated with 40,000 human skeletons.