At least according to the Guinness World Records.

This ancient Roman cistern has been the source of many legends throughout the centuries.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

The ruins of an ancient stadium that hosted gripping chariot and horse races.

An homage to the first Spanish cyclist to win the Tour de France.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

You'll find just about anything in this funky Tbilisi flea market.

When the Soviets destroyed the historic Armenian monastery they somehow left its bell tower intact.

Abandoned museum from the last days of Soviet domination, with a unique Brutalist design.

Unusual building appears to be haphazardly built from randomly piled bricks.

Rock-hewn monastery complex with hundreds of cave structures tucked away into the mountainside.

Fortified homes of highland warriors that are still in use today.

The decaying remains of a once-luxurious Soviet spa town.

A museum glorifying the life of Stalin, located in the city of his birth.

Ancient rock-hewn town that witnessed key events of Georgian history.

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

Legend says these stone structures are where the doomed citizens of a vanished village sent themselves to die.

Underground monastery and fortress.

A fountain filled with golden statues, celebrating the the ancient kingdom of Colchis.

Despite being tiny and rural this Georgian airport looks like a sci-fi boondoggle.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

Hidden up a dusty track off the Georgian Military Road is this fascinating waterfall with mountainous views.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

Georgia’s answer to Easter Island immortalizes the nation’s great poets, artists, and leaders in stone glory.