Suffocating dogs was a common spectacle in the fumes of this noxious cave.

An oasis of beauty, tranquility and botanical research in the middle of Rome.

A rare example of a medieval house in Rome adorned with a melancholic inscription.

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

This small church was constructed over the ruins of three temples dating to the Roman Republic.

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

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

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

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

This ancient Roman arch misled treasure hunters for centuries.

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

A massive marble foot is tucked away in a small alley near the Pantheon.

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

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

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

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

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

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

This ancient market is often referred to as the oldest shopping mall in the world.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

A hospital where antique dolls are given new life.

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