Former military fort and site of untold horrors during WWII, this island may become the Adriatic's next luxury resort.

A tiny church on a man-made island in the Adriatic.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A curious cave church carved into the face of a cliff.

Atop a small Armenian hilltop adorned with many forms, and carvings, these stones tell a whimsical tale from a fictional world.

Giant stone letters dedicated to the founder of Armenia's alphabet.

This series of Armenian caves held the oldest brain, shoe, and winery in the world.

A gigantic collection of teeny, tiny books.

Mysterious hillside with a continuously burning natural fire.

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

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

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

Fortified homes of highland warriors that are still in use today.

Small church on top of a huge rock column.

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

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

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

The fairy tale castle of the "fairy-tale king."

The prototype for all Nazi concentration camps.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

Locals spent years successfully fighting to save this beloved Brutalist behemoth from demolition.

Locals call it the "Give Peas a Chance" bridge because of its distinct graffiti.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.