One of São Paulo's tight urban intersections has become a haven for graffiti artists ever since a single Batman started the trend.

A 125-meter long "tribute to the Brazilian people."

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

The world's oldest grape-producing vine has survived four centuries of turmoil and even has its own anthem.

The "dragon babies" of southeastern Europe.

A whimsical bridge adorned with decorative dragons.

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

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

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

This massive subterranean fissure is known as the "underground Grand Canyon."

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

Launch site for nuclear war against Western Europe.

Open-air museum with a large collection of Soviet-era statues.

This micro-nation may be some sort of prank, but its constitution sure seems official.

A narrow strip of land is home to the tallest migrating dunes in Europe.

Flamboyant architecture from the turn of 20th century.

3,000 market stands in five former Zeppelin hangars.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Caves that can't seem to quit producing the remains of prehistoric humans.

A growing popular hipster market with over 100 local specialties and live music.

South Africa's postal service began with a letter left in a boot beneath this tree.

Mined to a depth of 240 meters with a perimeter of about 1.6 km, the largest hand-dug excavation in the world.