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

This small but lovely sinkhole lake is the last remnant of a great prehistoric water basin.

This poignant art installation raises awareness of violence against women.

This cliff-face port is considered a masterpiece of mining engineering.

A town saturated in Italian rationalist architecture was once marshland drained by Mussolini.

A slingshot from this delightful collection is awarded each year to someone who has "pulled metaphorical slings in favor of the weak and marginalized."

A medieval Italian village is fighting depopulation with this vibrant annual street art festival.

When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.

A wood-and-steel sculpture garden featuring an artful interplay of nature and machinery.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

These pools have been abandoned for over 20 years.

A map of Italy made entirely of trees.

An abandoned quarry hides an open-air gallery of huge sculptures, some made from the rubble of 9/11.

This one-of-a-kind archeological site is home to strange prehistoric ruins, the original use of which is still a mystery.

An unusual house built using an iso-elastic membrane.

An abandoned 17th-century baroque hunting lodge with a wonderfully strange architectural plan.

The world's largest bamboo labyrinth is a living demonstration of the plant’s immense potential.

An eccentric home in Sicily turns heads on a regular basis.

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

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

A line of abandoned, alien-like fortresses dot the mountains of North Italy.

This natural gas vent certainly earns its name as the smallest volcano in Italy.

A madman's personal garden filled with 1,000 sculpted heads.

Artist Diego Morlin's war between the natural and human worlds is a wanderer's delight.