One of the most important fortresses along the Danube now lies in ruins.

A retro Yugoslav congress, cultural, and business hall built in the 1970s, with an iconic world clock.

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

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

This monument honors a true hero dog.

Considered an architectural abomination by some, this metal-clad building is known as 'little red riding hood' by locals.

This spa park features an open-air museum of abstract marble sculptures.

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

Belgrade’s oldest restaurant has a rather unusual name.

These stairs feature the names of Zemun's most famous faces.

What started as a collection of vintage tractors turned into a museum filled with cars, radios, and other oddities.

Once a bridge over the River Begej, now high and dry.

Two buildings named after their windows that make it look like a sea of television sets plastered to a wall.

An Art Deco Icarus statue adorns this abandoned gem of Yugoslav Modernist architecture.

It may seem a little out of place in a tiny village, but the inspiring story of its creation made headlines.

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

The ruins of a military-industrial complex now host concerts and more.

Backwards hour and minute hands and a timing mechanism that fluctuates with the temperature led to this clock tower's local nickname.

One of Belgrade's most beloved animals.

Memorial to the victims of the Holocaust in Serbia.

This art installation pays homage to the famed stones of European lore.

The unusual sculptures are believed to be powerful political symbols.

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

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