Week-long block party becomes a competition for the best decorated street.

An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

Caves famous for the dragon-slaying saint who lived there.

A small man-controlled waterfall powers an Art Nouveau elevator and is accessed via narrow gauge, solar-powered tramway.

Cold storage for agricultural biodiversity.

Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Abandoned soda factory on a Cambodian roadside in a state of beautiful decay.

Lava stone structures possibly dating back to the 19th century may have been a stopping point for voyagers between ancient Egypt and the Mayan Civilization.

Once the hottest nightclub in France, Amnesia now lies in ruins after a 2000 bombing.

Cursed swimming pool left abandoned is now a favorite of filmmakers and ghost hunters.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

Abandoned Nazi train station turned underground astroparticle laboratory.

Abandoned waterpark turned counter-culture mecca.

An eerie, derelict amusement park in Berlin.

Museum preserving torture methods from the past.

A beautifully eclectic mix of architectural styles.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Traditional 11th-century outdoor tannery.

Founded as a refugee camp, now a popular tourist spot.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.