This enormous abstract sculpture is part jungle gym, part elaborate noise-making machine.

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

Oriental bazaar in the heart of Sarajevo.

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

This surreal memorial/cemetery is a necropolis of crumbling stonework and puzzle-shaped headstones.

Collection dedicated to funeral rites, equipment, and mourning rituals of the Viennese.

This abandoned Slovenian military barracks has become a punky-political art squat.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

This museum promotes informed contraception by documenting its often secret past.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Op-art architecture designed for happiness.

One of the best collections of wax anatomical models in the world.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

This former insane asylum now holds a pathological anatomy museum.

The beautiful baroque library of the Hapsburg empire.

Macabre museum devoted to historical Viennese murders.