Over time, this castle grew to encompass the entire island.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

A creepy statue of a hooded ghost hauls itself up from the water in a historic Lithuanian city.

A monument to the grand synagogue that stood in this space before Nazis burned it down.

3,000 market stands in five former Zeppelin hangars.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

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

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

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.

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

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

Underground monastery and fortress.

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

Hundreds of intricately carved Armenian stone crosses can be found within this huge cemetery.

The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

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

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

Island wonderland for communist autocrats.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.