Brass plaques embedded in pavement preserve the memories of those who lost their lives at the hands of Nazis during World War II.

In an area known in Bratislava’s postal history, this sculpture sits equipped with a functional postbox.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

Dead weights honor the dead of Portugal's fishing industry.

This statue honors the first Relay of Youth.

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

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

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

Near Belgrade, an ancient-looking sarcophagus serves as a World War I monument.

This outcropping was once home to a medieval monastery destroyed during the Ottoman conquest.

These natural stone bridges are the largest on the European continent.

This symbol of Yugoslav liberation decorated with 620 carved heads of mythical creatures is now a forlorn relic of another time.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

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

The ridged layers that make up this river canyon represent Earth's geological history.

This mesmerizing medieval monastery-cave complex sits thousands of feet above ground overlooking a valley.

For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

Zastava automobile sculptures and images grace various gravestones in this cemetery.

A museum dedicated to the classic Italian scooter in the heart of Serbia.

At this archaeological site, visitors can explore the ruins of the capital of the former Roman province of Moesia.

This natural monument has an origin story steeped in legend.

A Roman monument to their own civil engineering prowess.

Abstract monuments express sorrow and resilience at the site of a horrific massacre in Nazi-occupied Serbia.