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

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

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

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

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

The last standing example of an ancient district's teatime tradition.

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

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

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

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

Rock-hewn monastery complex with hundreds of cave structures tucked away into the mountainside.

The miraculous hydrant that saved the Mission District in 1906.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

A modest reminder of treacherous waters at the Golden Gate.

The southernmost outpost of the Russian Empire in colonial America.

Its dark depths conceal millions of rare, delicate crystal formations.

Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

A monumental cross hides in the trees in Golden Gate Park.

Frank Lloyd Wright died a year before construction on his largest public project even began.

The remains of a ruined mansion memorialize the 1906 earthquake.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.