This ancient abandoned church in a remote part of Turkey is in danger of falling over.

The foundation of this ancient stupa dates back to the 1st-century.

More than 10,000 small mirrors cover the curved surface of the world's second-largest solar oven, located in a remote village in Uzbekistan.

The preserved arm of a third-century sorcerer is believed to have the power to lift curses and spells.

A massive underground palace containing a colossal reclining Buddha statue and the only Buddha parietal bone relic in the world.

A lake that borders Kazakhstan and Russia allegedly harbors the giant "Terror Trout" or "Chinese Nessie."

With former lives as a bomb shelter and government parking lot, this shop is one of China’s most extraordinary locales for book-lovers.

This top secret Chinese military megaproject is the world’s largest human-made tunnel structure.

China's most famous acrobatics act.

Rivers of cattle blood gone, a strange Escheresque building remains, the last of its kind.

Not one, not two, but three natural bridges remain in this captivating spot post-sinkhole.

Once the home of a hermetic monk, this cave now houses a small church.

The Slovenian architect designed many landmarks in the capital city, including his own dream house.

A plaque bearing the names of those who dedicated themselves to protecting Budapest's Jewish population during World War II.

According to local legend, the devil shattered this column after losing a bet.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

A massive marble pedestal is all that remains of a column that towered over Constantinople for 1300 years.

The legendary luxury train passage is commemorated with a charming museum inside its former eastern terminus.

Rediscovered underground chapel is one of the best examples of Gothic architecture in Vienna.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

Baroque celebration of the end of the Great Plague of Vienna.

Op-art architecture designed for happiness.

Bangkok's take on the High Line is a park on a traffic bridge above the iconic Chao Phraya River.

For centuries young Thai men used this Giant Swing as a slingshot to heaven.