Whimsical sculptures and caves chiseled by nature over the millennia.

This Arab fortress was once the largest citadel in Western Europe.

An out-of-place grove of sequoias thrives in northern Spain.

An arresting arch punched straight through a mountain provides one of the most scenic spots, and challenging climbs, on the planet.

An ancient stone structure that, according to legend, was built by witches.

A factory director designed what was the world's longest suspension footbridge in 1923 so his employees could get to work safely.

A stunning bridge that appears as if it's lunging to the shore, and has a legend of a devilish architect.

Leonardo da Vinci was one of many to find inspiration in this unique, rocky landscape in Tuscany.

One of ancient Etruria's most spectacular archaeological sites with impressive necropolises and rugged landscape.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

This caldera was once associated with the Etruscan god of the underworld.

Italian director Pier Paolo Pasolini fell in love with this lonely 13th-century tower while making his most famous film.

A fascinating assortment of cave dwellings, medieval ruins, and sarcophagi are being devoured by the forest.

This ancient altar emerges from the thick forests to reveal the mysteries of Etruscan sacrificial rituals.

This archaeological site built into a tuff outcrop is filled with rock dwellings, the ruins of a medieval castle, and a necropolis.

This lesser-known leaning tower is all that remains of the medieval castle of Vernazzano.

For centuries, this town's hot springs have been embraced by rich and poor—and even by Popes.

A map of Italy made entirely of trees.

This medieval mountain town is also known as the "Village of Streams."

Legend said this huge, gnarled tree sheltered the saint during a storm.

A 17th-century doorway in a small Sabine village is a portal into the mysteries of alchemy.

The marshy karst plain has reclaimed this beautiful 17th-century church.

This lake was sacred to the Sabine people who constructed a temple here on a floating island.

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