What is left of the pillar of Saint Simeon, the voluntary martyr who climbed the column to give his sermons, remaining perched there for thirty-seven years.

Ruins of the Crusaders' headquarters.

A 1,500-year-old ghost settlement is slowly fading away.

Only a handful of these gorgeous historic waterwheels remain but even those are in danger from local unrest.

Mysterious lost empire of the Silk Road.

The largest hewn stone in history.

After this one-of-a-kind palace was built the architect's hands are said to have been cut off to keep it that way.

An intimate look into the apartments of Jounieh via cable car.

A monumental underground karstic wonderland is also the water source for over a million citizens of Beirut.

A 15th-century granary that played the role of futuristic slave quarters in the world of 'Star Wars.'

The other side is actually green.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

The most famous location in China was home to whole dynasties worth of imperial rulers.

A huge communist-era propaganda monument and mural that offers stunning views of the Mongolian capital.

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

Enormous statue of the Emperor of the Mongols.

Replica of mosque destroyed by Russia in the 16th century.

Church built on the site where the last tsar of Russia and his family were killed.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

Where commuters walk through remnants of an ancient Greek necropolis.

Macabre astrological automaton clock dating to the late 1400s.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

What looks like a suicide in progress is actually a statue of Sigmund Freud.