An extraordinary "City of Caves" carved from solid stone.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

Centuries before the modern seismograph, Armenian monks measured quakes with this tilting pillar.

The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

Called the "Armenian Stonehenge," this ring of menhirs pierced with holes may be a prehistoric astronomical observatory.

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

This series of Armenian caves held the oldest brain, shoe, and winery in the world.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

Huge stairway leads to this massive gallery.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

The secret room where early Bolsheviks cranked out propaganda fliers on a smuggled printing press.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

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

With over 10,000 lights, this engineering marvel lights up the city after dark.

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

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

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

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

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

In the garden of a Georgia museum, without any explanation, is a monumental head of the Communist icon.

At this rare mosque in Tbilisi, Sunni and Shia Muslims pray side by side.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

A lively circle of dancers in the Georgian capital commemorates an ancient rite of spring.