This unique museum focuses on the Siege of Sarajevo through children's eyes.

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

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

With over 10,000 lights, this engineering marvel lights up the city after dark.

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

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

A fountain filled with golden statues, celebrating the the ancient kingdom of Colchis.

A literally moving statue of stacked metal giants just continually trying (and failing) to find love.

Tower with a double-helix spiral, adorned with letters of the Georgian alphabet.

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

Pompeii's less famous neighbor is still revealing her secrets.

A sulfuric hellscape in southern Italy.

This medieval city gate is now a blend of the past and the modern world.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

This abandoned Slovenian military barracks has become a punky-political art squat.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Water and windows define this defensive Italian well.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

A musical instrument played by the sea.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

A Serbian church lit by chandeliers made of weapons.

This 15th-century Serbian Orthodox monastery also contained a school for illuminating manuscripts.