Egyptian Revival movie palace abandoned for decades and restored in 2013.

A museum of magic with a Sadist past.

This museum houses an imposing skeleton army comprised of creatures great and small.

A haunting collection of the vanished and disappearing natural world.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The oldest stone house in Paris was built by its most famous alchemist.

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

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

Roman-era ships unearthed...

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

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

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

The underground sanctuary of a mysterious ancient cult.

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

2300-year-old Roman road connecting the empire.

Roman politician Herodes Atticus built this nymphaeum to honor his wife, whom he may have murdered.

One of seven Jewish catacombs in Rome and one of only two open to the public.

Jesus' footprints and the first catacombs in the world.