The cave holds a spectacular array of stalactites and stalagmites, including one shaped like a giant human heart.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

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

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

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

Small church on top of a huge rock column.

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

Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

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

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

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

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

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

An eccentric park and pool.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

An avant garde art museum at the University of Chicago.

A display of magnificent stained glass windows is the first exhibit of its kind.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

A hollow cement depiction of time's inexorable effect on the human body.