The medieval fortress of Prince Lazar of Serbia is now an archaeological park.

The unusual sculptures are believed to be powerful political symbols.

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

Memorial to the 89 children killed during the NATO bombing of Serbia.

A NATO bombing took the lives of 16 civilians in 1999—the ruins remain in the center of Belgrade.

This striking, historic hotel has major Wes Anderson movie energy.

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

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 Serbian church lit by chandeliers made of weapons.

Memorial to the victims of the Holocaust in Serbia.

A pair of connected skyscrapers form this symbolic gateway.

One of the world's tallest statues is also one of its most hated.

Gargantuan home of Russian science.

Some Moscow residents once claimed the bizarre, contorted mass of metal on top of the building was used to manipulate minds.

This massive monument honors the first human in space.

The world's first museum dedicated to the work of game-changing naturalist Charles Darwin.

Structure built from the skulls of vanquished foes.

The bizarre rocks of Đavolja Varoš are the result of natural erosion.

Operating continuously since 1903, this "milestone" facility transformed the regional economy.

Popular river that runs through the remote Serbian municipality of Leskovac.