A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The prototype for all Nazi concentration camps.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

Hundreds of Buddhas in a re-discovered Indonesian temple.

Singapore's landscaping project is home to 18 incredible Supertrees.

30 years worth of pressed-tin, bakalite, and characters both loved and forgotten.

Once the private home of China’s most legendary tycoon, getting inside this stunning mansion no longer requires an elite pedigree or acts of daring.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

5,000 skulls in memorial to those killed by the Khmer Rouge.

A battle between nature and architecture in the Cambodian jungle.

Khmer Rouge's high security prison.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The footprint of a frustrated devil in Munich's Cathedral.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The world's first ice hotel is still one of the most elaborate and beautiful.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

It houses the remains of a 17th-century version of the Titanic.

Sweden's "good old days" painstakingly re-created in a model village.

18th century opera in its original splendor.