The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

These crumbling towers are some of the last remnants of a centuries-old Vietnamese culture.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

This French colonial post office is arguably the grandest in all of Southeast Asia.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

The world's second largest single-dish radio telescope, once used to contact E.T.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

The final resting place of a space program monolith.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

Historic funicular railway, believed to be the shortest railroad in the world.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

Resting place of Hollywood's immortals is also site of summer film screenings.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

World's largest collection of serial killer artwork and other macabre exhibits.