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.

A statue representing a lost Roman profession that was vandalized for centuries.

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

A sculpture serving as an homage to Pope John Paul II.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

Ancient ruins hidden underneath a modern luxury hotel.

This historic recreationist school churns out warriors that may very well have had a fighting chance in Rome's pits of the day.

An enigmatic modern marker left next to a historic Roman site.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

A modern sliver of architecture in Roma.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

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

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

The Pope’s secret escape route.

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

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

2300-year-old Roman road connecting the empire.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

An alchemist's "magic door" stands in the middle of a Roman park.