Renaissance villa and gardens complete with a tormented colossus.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

A massive underwater sinkhole made famous by Jacques Cousteau.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

Splashes of blue in an otherwise monotonous lunar landscape.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

Nightmarish example of the unintended consequences of weapons testing.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Stalin's march toward a more modern USSR flooded a monastery, leaving a unique and extravagant nautical marker, "The Flooded Belfry."

A Romanesque tower appears when water levels drop.

Azerbaijani ghost town, decaying after a war left it an armed forces buffer zone.

Roman ruins top white travertine terraces formed by ancient hot springs.

This brutalist monument is inscribed with 9921 names of Yugoslav partisans who perished during WWII.

This spaceship-like Serbian monument reaches for the stars in celebration of the fallen fighters of fascism.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

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

Three members of Syria's ruling family entombed in quiet mountain town.

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

The Avenue of Mausolea is a series of grand palatial tombs.

A spectacular cave and a beguiling lake.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

On the Pakistan-India border the militaries perform an elaborate theater of aggression each and every night.

A submerged archeological park still holds the wonders of a Roman Sodom.

The best-preserved Roman small town in North Africa.