The titular "little arch" near this Italian resort is one of the most popular diving spots in the country.

Money may not grow on trees, but it can be dispensed by one.

Windblown rock formations in an ancient Roman quarry.

This weird, elephant-shaped rock also hosts two ancient tombs.

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

Ancient cave tombs known as the "houses of fairies."

Greenery covers the face of a gently-dripping waterfall deep in the mountains of central Sardinia.

Packed with geological formations, an ancient river, and taxidermied seals, this overlooked coastal cave system is worth a spelunk.

Once one of the largest sites of silver deposits in Italy.

An eerie gravel road full of shards of red bricks leads to the ruins of a deserted factory.

A former mining village that now operates as an open-air museum.

This elaborate hole in the ground was built as a sacred site for an ancient civilization.

Stalactites and stalagmites in a beautifully lit cave.

A striped 12th-century basilica sits in the countryside of Sardinia.

At an estimated 3,800 years old, this olive tree is one of the oldest on earth.

The famous sculptor had a hand in this imposing fortress.

A plaque on the base of this statue holds a bewitching design.

This tiny chapel withstood a massive mudslide and flash flood.

The first passenger cable car in the world.

The Adriatic's most famous wind can be reliably experienced in the city's Marina.

After World War II, this former concentration camp in Northern Italy became a refuge for those displaced by the war.

An impressive bridge over a ravine also served as an aqueduct.

The entire known universe of the ancient Etruscans is held inside this bronze model of a sheep’s liver.

The eerie ruins of this feudal fortress witnessed the execution of 60 conspirators in 1387.