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

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

Underground monastery and fortress.

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

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

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

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

A massive bell inside a Danish library rings to announce the birth of a baby in the city.

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.

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

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

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

A haunted outpost in Moldova, where guards are said to have fired at a ghostly figure.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

This oversized tribute to the nation's tiniest coin highlights the value of small contributions.

A chain coffee shop in Bulgaria that takes its Italian roots very seriously.

An interactive museum-like experience takes visitors back to 1980s Communist Bulgaria.

Sofia's legislative center is continuously reinventing itself.

Eastern Bloc nostalgia, anybody?

A vast Communist-era exhibition space in the Bulgarian capital.

"Holy Wisdom" overlooks the city that became its namesake.

A striking symbol of the Bulgarian capital.

Historic beer hall in Bucharest with magnificent stained glass and a lively folk band.