This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

Constructed along the shores of Lake Zurich, this pavilion is a walk-through work of art.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

The bears of Bern have been a city highlight for over 500 years.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

A cablecar-station-turned-revolving restaurant with 360-degree views of the Swiss skyline.

Swiss vineyards in a UNESCO heritage site.

An ancient knight and a symbol of the city's freedom.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

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

The first mosque in the world to receive electricity.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

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

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.

This one-time health resort was used by aristocrats around the world.

Longest fortress system anywhere in Europe.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

A tiny church on a man-made island in the Adriatic.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.