This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

The building's fluid, wavelike walls are a true feat of architectural ingenuity.

This massive underground salt mine now holds a sci-fi theme park in its depths.

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.

Remnants of successive wars and Muslim colonialism in the 11th century.

An abused and forgotten metropolis, abandoned for centuries.

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

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.

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

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

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

Small church on top of a huge rock column.

Underground monastery and fortress.

A literally moving statue of stacked metal giants just continually trying (and failing) to find love.

Tower with a double-helix spiral, adorned with letters of the Georgian alphabet.

The first skyscraper to include a Ferris wheel built into the facade.

Fast food feels like fine dining at this award-winning modern Georgian building.

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

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

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

A sublime medieval path adorns the marble floor of one of the most beautiful Gothic cathedrals in France.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

Arguably Belgrade's only example of pure Art Deco architecture.