Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

Crumbling necropolis set high above Fez.

Macabre astrological automaton clock dating to the late 1400s.

A miniature train-ride through Slovenia's largest cave system.

The "dragon babies" of southeastern Europe.

This one-time health resort was used by aristocrats around the world.

A whimsical bridge adorned with decorative dragons.

The middle finger of modernity.

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

A unique tribute to the millions of animals who served and died for the British military.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

This coffee shop lies hidden beneath a historic church.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

The notorious "Hanoi Hilton" where Vietnamese colonial subjects and later American POWs, including John McCain, were imprisoned.

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

A moving memorial to the fallen and missing from WWI trenches.

A rare example of World War I trenches from the British front.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

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

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

A massive flood devastated this seaside town, causing many to speculate about whether the government had figured out how to influence the weather.