Rome's first modern graffito is all that is left of a peaceful protest from the 1970s.

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

This curious, round temple is the oldest still-standing marble building in Rome.

Two stone columns flank the grand Venice square, but there were supposed to be three.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

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

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

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

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

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

This large, circular tomb is the final resting place of the first emperor of Rome.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

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

Ancient snack bar of the Roman Empire re-opened.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

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

Drink wine handed out through a window as part of an age-old tradition.

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

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

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

A Nesting Doll of Churches.