The first mosque in the world to receive electricity.

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

This historic cemetery was inaccessible for several years due to dozens of land mines.

Oriental bazaar in the heart of Sarajevo.

This abandoned Olympic skiing facility still bears the scars of the Siege of Sarajevo.

These warring psychedelic crags commemorate an unsuccessful military operation.

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.

Bridge that died in war and was resurected.

Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

Longest fortress system anywhere in Europe.

Gargoyle head that brings good luck.

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

A World War II evacuation tunnel turned into a history display of Croatian state and people.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

Once a state-of-the-art tuberculosis treatment spa, these ruins are now ruled by paintball players.

Where the lovelorn find a home for their sentimental keepsakes.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

The now-overgrown beach resort was once frequented by Yugoslav military elite.