A pair of connected skyscrapers form this symbolic gateway.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

Controversial site of what could be Europe's first pyramid.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

A forgotten and crumbling Yugoslav monument to the victims of fascism.

This brutalist monument is inscribed with 9921 names of Yugoslav partisans who perished during WWII.

These warring psychedelic crags commemorate an unsuccessful military operation.

Yugoslavia's biggest underground airport lies in ruins.

The place where World War I began.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

Oriental bazaar in the heart of Sarajevo.

A war-torn Olympic relic is being overtaken by graffiti and nature.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A retrofuturistic art installation in the Pittsburgh Airport.

The 25th President's marble casket can be visited in this classical Ohio tomb.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

The only presidential monument to display a late POTUS's actual casket.

Landmark dedicated to the plight of the American Indian in the 21st century.

"Where the ducks walk on fish."

A grandiose title could not save this mercantile community from obscurity.

The site of Neil Armstrong's first flight is marked by a full on replica of the moon landers.