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

The curious underground history of keeping Paris clean.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Jesus' footprints and the first catacombs in the world.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Giant topiary dog once played a role in a terrorist bomb plot.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Budapest's Communist-era statues, banished to the suburbs.

More than 200 statues filled with cryptic symbols give this park spot an aura of horror vacui fantasy.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

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

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

Khmer Rouge's high security prison.

A battle between nature and architecture in the Cambodian jungle.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

The remains of this ancient fortress atop a manmade hill look as though they were built into a volcano.

The home of the Dead Sea Scrolls is an abstract modernist dream.

A "miracle" that seems to produce more holy fistfights than holy revelations.

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

In this historic region, homes and churches are carved into ancient volcanic rock formations.