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

Legend holds that the Ancient Greek goddess of love once bathed in the waters of this grotto.

The interior of this church has been turned into a memorial to locals who died in Croatia's Homeland War.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

A small hippo-shaped fountain in Berlin, Germany.

While most shipwrecks are submerged, this ship in Cyprus ran ashore.

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

A wide array of locomotives call this outdoor museum home.

A historic and beautiful Art Nouveau chamber in a historic railway station.

The largest and best-preserved rotunda in Prague.

The local club's soccer field is practically surrounded by UNESCO-protected monuments.

A stone from Africa's tallest peak is immortalized in a Potsdam palace—but is it actually the mountaintop?

This elevator was built in 1907 to connect two neighborhoods separated by a steep, rocky cliff.

An underground network of massive stone arches and their skylit vaults support ruins of portico structures above.

One of the newest mosques in a city filled with thousands.

A tiny park in the middle of some big power politics.

Have tea in a cemetery with a dazzling view of Istanbul.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

Ancient serpentine sacrifice holder that has stood the test of time.

A fountain standing as a testament to a doomed alliance.

The most metal church of all time was built in record time because of an international, pious pissing contest.

A marvel of Byzantine engineering under the streets of Istanbul.

A sixth-century Byzantine cistern hidden below a modern carpet store.

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.