5,000 skulls in memorial to those killed by the Khmer Rouge.

A battle between nature and architecture in the Cambodian jungle.

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

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

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

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

These Stalin-era industrial 'death traps' hang lifeless above the city

Small church on top of a huge rock column.

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

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

The charmingly disheveled clock tower of Tbilisi's puppet theater.

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