The unusual sculptures are believed to be powerful political symbols.

A Serbian church lit by chandeliers made of weapons.

Arguably Belgrade's only example of pure Art Deco architecture.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

A misnamed well, with a deep dark past.

Belgrade’s oldest restaurant has a rather unusual name.

This small bronze pyramid marks the center of Belgrade, but some say it is a Masonic symbol.

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.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

The first mosque in the world to receive electricity.

An unexpected homage to 90s celebrities hidden in a corner of Ibiza.

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

Oriental bazaar in the heart of Sarajevo.

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.

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

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

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

In this town's main square resides a statue of none other than the 43rd President of the United States.

A tiny church on a man-made island in the Adriatic.

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

Its frescoes depict the likeness of Marshal Tito, Karl Marx, and Friedrich Engels burning in hell.

This virtually windowless mass of smooth concrete is the only Catholic church in the city.