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

142 ceramic steps become a mosaic once a year.

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

This natural gas vent certainly earns its name as the smallest volcano in Italy.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

The walls and streets of the ancient city are peppered with penises.

The highest waterfall in Italy is only "turned on" five times a year.

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

A madman's personal garden filled with 1,000 sculpted heads.

A line of abandoned, alien-like fortresses dot the mountains of North Italy.

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.

Crumbling ruins of the thermal baths that once attracted royals and aristocrats from throughout Europe.

Water and windows define this defensive Italian well.

Geometry and mystery come together in an epic show of octagonal masonry.

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

An Italian geologic wonder that served as the inspiration for the landscape of Dante's hell.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

Beautiful views and Roman-style statues on the Italian coast.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

A medieval weapon rumored to have been used by the brilliant poet himself.

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

A huge enchanting public park just outside the ancient walls of Rome.