An eerie fountain commemorating the death of a boy that sparked a small war in the 19th century.

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

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

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

This statue of the famed author, actor, and journalist is made entirely of screw-nuts.

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

The unusual sculptures are believed to be powerful political symbols.

Different sections of the Zemun Fortress were built in the 14th and 15th century as a response to the advance of the Ottoman Empire.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

A pair of connected skyscrapers form this symbolic gateway.

A Serbian church lit by chandeliers made of weapons.

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.

An unfinished Serbian Orthodox church with 1,389 golden crosses planned to represent the Battle of Kosovo.

This massive monument was unveiled the day Kosovo declared independence from Serbia.

A 11-foot former president stands on a Kosovo street that also bears his name.

A futuristic, brutalist masterpiece that is also strangely prison-like.

An interactive museum-like experience takes visitors back to 1980s Communist Bulgaria.

Sofia's legislative center is continuously reinventing itself.

"Holy Wisdom" overlooks the city that became its namesake.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.

A striking symbol of the Bulgarian capital.

Artist Veaceslav Jiglițchi brings a connection to Chișinău through works of art.

This abandoned Soviet circus is slowly being restored to its Communist-era glory.