The underground sanctuary of a mysterious ancient Roman religious cult contains an exquisite traditional fresco.

An unsettling painting of three faceless sisters that is surrounded by history and legend.

A 2,000-year-old engineering wonder hides beneath an Italian town.

Though an earthquake destroyed this village in 1980, one former resident still walks its streets every day.

A map of Italy made entirely of trees.

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

Leveled by an earthquake, this Italian village is now preserved as a massive concrete art project.

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

Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

Just saying the name of this town out loud is said to bring bad luck.

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

The old church, buried by the 1784 Mount Vesuvius eruption, is a remarkably well-preserved place where people now pray for the souls of the dead.

An abandoned village, frozen in time by the threat of a landslide.

Also known as the Temple of Poseidon, this is one of the best-preserved Greek temples in the world.

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

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

This network of roads is one of the most unique Etruscan creations ever discovered.

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

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

The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."

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

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

Mysterious tombstones thought to be remnants of Atlantis.