These delicate sand pyramids look like naturally occurring gothic spires.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

Southern Italy's spinning top village.

A star-shaped fortress town fort built in the geometric model of the Renaissance utopian city.

100 year tradition of fist fights, marked by marble footsteps.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

A lover's walk between hilltop towns, decorated with graffiti love notes.

Bell tower juts out from a village buried under a lake.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

Italian cave with exceptional acoustics and an unsavory history.

Ancient snack bar of the Roman Empire re-opened.

Erotic art covers the walls of the largest ancient pleasure palace.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

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

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

This winding road through an Italian canyon may be the most scenic drive in the world.

Gigantic mosaic sculptures of the figures on Tarot cards fill this colorful Tuscan garden.

One of the largest caves in the world open to the public.

Virgil's many-mouthed gateway to the underworld.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.