Ruins of a former government building destroyed during the Georgian-Abkhaz war in the wake of the fall of the Soviet Union.

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

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

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

This pink watchtower served as the seat of the Greek government after independence from the Turks.

The rocky remains of an ancient Greek forest.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

Where commuters walk through remnants of an ancient Greek necropolis.

An ancient octagonal weather station named for the eight Greek gods of wind.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The hallucinogenic center of the ancient world.

The observation point offers spectacular views of the ruins of an ancient Armenian capital.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

Centuries before the modern seismograph, Armenian monks measured quakes with this tilting pillar.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

A scenic canyon with thick forests and historic ruins.

A geological oddity topped with a 2,000-year-old pagan temple.

The world's largest reflecting pool is just two centimeters deep.

For those late-night mollusk cravings.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

A remote hilltop covered in giant monoliths haunts the Brittany countryside.