This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Historic funicular railway, believed to be the shortest railroad in the world.

The legendary building that needed ghostly approval before being built.

A visionary, futuristic sculpture in Los Angeles that never met its extraterrestrial potential.

Once a state-of-the-art tuberculosis treatment spa, these ruins are now ruled by paintball players.

This huge metal monument is slowly being stripped to its concrete skeleton.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

A tower marking the spot where Yugoslavia began its resistance against the invading Nazis stands neglected, but not quite forgotten.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Yugoslavia's biggest underground airport lies in ruins.

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

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

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

Oriental bazaar in the heart of Sarajevo.

The place where World War I began.

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

Built as an anti-fascist tribute, this surreal Yugoslav memorial became an unwelcome symbol after the Croatian war for independence.

This historic cemetery was inaccessible for several years due to dozens of land mines.

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

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

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

These warring psychedelic crags commemorate an unsuccessful military operation.

Structure built from the skulls of vanquished foes.

This memorial park stands on the site of one of the largest mass executions of the Second World War.