Amalfi's pre-industrial history is slowly being engulfed by the lush vegetation of the Ferriere Valley.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Enigmatic tombs and cave dwellings on the outskirts of a rural village.

At more than 5,000 years old, these structures are among the oldest free-standing stone buildings in the world.

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

Every Easter, a small Sicilian town builds a stunning cathedral out of bread.

This skeletal, unfinished Gothic church once housed a miraculous masterpiece by Raphael.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

A study of Fascist era Art Deco design in Italy.

A network of underground water channels that dates back to the Middle Ages.

This amazingly preserved Doric temple was abandoned before it was ever completed.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.

A quiet Sicilian village is home to a cafe that had an important role in "The Godfather."

The world's most active stratovolcano is almost always erupting.

These pillars at the main entrance of this church are actually a hidden musical instrument.

A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.

What looks like a link in Gondor's early warning system is actually a centuries-old Italian fortress.

The largest man-made crater in the U.S. marks the spot where we once tested mining with nukes.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

The world's tallest circular building is loaded with symbolism, but many just see a big donut.

The world's largest natural arch was forgotten for over 50 years after its discovery.

Stone shrouds of Prince Liu Sheng and Princess Dou Wan of the Han Dynasty, created to preserve their flesh for eternity.

The world's largest statue of Mao Zedong looks out over the city where he discovered Communism.

A lush desert oasis in the shape of a narrow crescent.