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

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

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

One of the most important yet well-hidden museums dedicated to the history of medicine.

An unremarkable wooden wheel built into the side of one of Rome's oldest hospitals was part of a policy to reduce infant exposure.

The Pope’s secret escape route.

A collection of objects supposedly singed by the hands of souls in purgatory.

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

A hospital where antique dolls are given new life.

A large replica of a monumental Roman inscription is located on the side of this museum.

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

This basilica is dedicated to two saints, one of which is known more for his famous quote.

This statue is the only female representation of Rome's "talking statues."

Plaques on its facade commemorate the Tiber's most destructive deluges.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

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

The remains of this 2nd-century Roman temple are incorporated into a modern building.

A deep mark on the remains of a Roman temple, believed to be left by a legendary warrior.

An 18th-century post box used to alert the church of sick and ailing foreign pilgrims.

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

Ever hear of the Milazzo Cage?

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

This hidden alley near the location of Rome's first theater was the site of a curious miracle.