A jungle cave in Peru of unknown depths, otherworldly sounds, and strange nocturnal birds that navigate by echolocation.

Art school in the Amazon: Drugs, nature and sustainable agriculture.

Believed to be the remains of the lost Temple of Minerva, this nymphaeum has been known by its misnomer to this day.

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

One of Rome's most picturesque and original bridges was also a popular choice for Grand Tour artists.

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

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

Known for centuries as the famous Roman emperor's burial place, this monument is actually something else.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

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

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

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

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.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

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

St. Francesca Romana, patron saint of drivers, resides in the church she founded.

This ancient trail climbs the mountain where a Latin League cult worshipped Jupiter, its main deity.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

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

Ancient ruins hidden underneath a modern luxury hotel.

This is the oldest Roman-made bridge in the city still existing in its original state.

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

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