The current seat of the Parliament of Andalusia was once the epicenter of the Great Plague of Seville.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

The final resting place of the great navigator, or maybe his brother.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

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

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

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

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

A colossal aqueduct from the second century B.C., deeply hidden in a gorge on the outskirts of Rome.

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

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

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

A secret hatch containing two parchments was discovered in this statue over 40 years after its installation.

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

According to local folklore, this Roman sepulcher was once a throne for the Devil.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

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

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

This ancient Roman arch misled treasure hunters for centuries.

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

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

Rome is now home to a stunning food museum and library.

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