Early prototype for Frank Lloyd Wright's Guggenheim.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

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

A whimsical bridge adorned with decorative dragons.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

The "dragon babies" of southeastern Europe.

A miniature train-ride through Slovenia's largest cave system.

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

This 135-year-old weather station studied the effects of the climate on human health.

A monument on the pavement marks the spot where two cultures that shaped Sarajevo come together.

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

Oriental bazaar in the heart of Sarajevo.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

The first mosque in the world to receive electricity.

The place where World War I began.

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

This enormous abstract sculpture is part jungle gym, part elaborate noise-making machine.

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

Some of the best-preserved specimens of the monumental medieval tombstones found throughout Bosnia and Herzegovina.

Gargoyle head that brings good luck.

Inside this mansion turned museum, the works of prominent Croatian artists are on full display.

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

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

An ancient knight and a symbol of the city's freedom.