Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

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

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

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

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

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

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

Its interior is adorned with some of the best examples of early Christian mosaics.

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

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

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

Ancient ruins hidden underneath a modern luxury hotel.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

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

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

What if all public housing projects had been designed by "the Pygmalion of modern architecture," not only their prototype?

Geological storytelling.

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

Spain's largest bullring offers a unique glimpse at architecture and history.