The first mosque in the world to receive electricity.

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

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.

The fragmented remains of a massive public bath connected to the city's water supply.

A centuries-old quest to create artificial life is alive and well in the French town of Limoux.

Historic medieval fortified city in southwest France.

One of the world's oldest olive trees, thought to be over 2,000 years old.

A museum dedicated to secret surveillance.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

A scenic UNESCO site that doubles as a habitat for various forms of wildlife.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

Climb into Albania's communist history while enjoying a spectacular ocean view.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

A solar-powered primary school inspires hope and experimentation in a country ripe for energy innovation.

A historical puzzle lies at the origins of this structure.

In the hometown of the Catholic saint and Nobel Peace Prize winner, a memorial dedicated to her legacy.

A 14th-century Serbian Orthodox church that was once converted into a mosque under the much-disfavored Ottoman Empire.

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

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

Controversial site of what could be Europe's first pyramid.

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

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

A tribute to a man who defied the Nazis until his last breath.