These warring psychedelic crags commemorate an unsuccessful military operation.

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

The first mosque in the world to receive electricity.

Oriental bazaar in the heart of Sarajevo.

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

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

A wonderfully strange collection of 500+ stuffed frogs doing people things.

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

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

Something's missing between the arcades of the Palazzo della Ragione in "the city of the three withouts."

Two stone columns flank the grand Venice square, but there were supposed to be three.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Centuries ago, red and white wine poured from the statue's breasts whenever a new Venetian ruler was elected.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

Southern Italy's spinning top village.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

A dead saint, a deadly poison, and a mysterious holy ooze.

Old batteries and frog skeletons reside in this lakeside monument to Alessandro Volta.

This half-finished "city of toys" was almost Italy's own Las Vegas.