God's Saharan sandbox of wrath.

This peculiar Italian elevator runs both horizontally and vertically.

Featuring the last fully walkable parapet walkway in Europe.

One of the tallest bell towers in Italy plays a particular melody at just two times each day.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

With its mine closed, this old village is starting to resemble a ghost town.

A crumbling World War I fort that is reached through a series of concrete tunnels.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A star-shaped fortress town fort built in the geometric model of the Renaissance utopian city.

This was the second largest mercury mine in the world and one of the oldest preserved mine complexes in Europe.

Colorful power station with a chimney equipped with a gallery for exhaust monitoring equipment.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A whimsical bridge adorned with decorative dragons.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

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

This former railway facility is the oldest in Slovenia, and now houses a museum showcasing the history of steam locomotives.

Strange rumors surround the artist who created these solemn metal guard dogs.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Where Venice's gondolas go for a tune-up.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Go inside to really appreciate this 500-year-old technological masterpiece.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.