A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

A Soviet era flat that refused to conform to the dull gray standards.

Krakow's own version of the Hollywood Walk of Fame.

This grubby wall is said to be one of the Earth's esoteric energy centers.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

Special benches that play Chopin's music are scattered throughout his native city.

The site of the first battle of World War II.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This museum houses an imposing skeleton army comprised of creatures great and small.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

France's most famous cemetery, with some of its most curious tombs.

The oldest stone house in Paris was built by its most famous alchemist.

This futuristic observatory at the top of the Pyrénées offers unrivaled views.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

Where condemned pirates met their grisly end at the gallows on the River Thames.