A gleaming white and undulating tower marks the border between Georgia and Turkey.

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

Unusual building appears to be haphazardly built from randomly piled bricks.

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

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

A museum dedicated to the former country.

Despite being pillaged and destroyed a number over times down the centuries, this historic church still sort of stands.

A Red Cross memorial museum at the site of the Niš concentration camp that operated for four eventful years during World War II.

Structure built from the skulls of vanquished foes.

Two bulls enter. One leaves a champion—but neither loses its life.

A bridge destroyed three times: once as a ruse, then in an actual attack, and finally for the movies.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

The haunting ruins of a military fortress turned astronomical observatory sit on a Sarajevo mountaintop.

A war-torn Olympic relic is being overtaken by graffiti and nature.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

This historic black and white monastery is one of Bulgaria's architectural jewels.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

This enormous abandoned prison was once dubbed the "Bastille of Romania."

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.