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

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

A modern sliver of architecture in Roma.

A fake medieval village in the middle of Turin.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

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

Rome's ancient Etruscan rival, now a park full of ruins.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

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

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

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

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

The giant skeleton sculpture is surprisingly well-traveled.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This half-finished "city of toys" was almost Italy's own Las Vegas.

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

An ancient artistic garden parlor full of hidden water wonders.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

A Nesting Doll of Churches.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.