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

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

If you want to talk to the Pope you will have to stare down this surreal vision of Jesus rising from a nuclear hell.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

2300-year-old Roman road connecting the empire.

The Pope’s secret escape route.

A hospital where antique dolls are given new life.

Harlequin costumes, signed scripts, and armor-wearing puppets.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A Nesting Doll of Churches.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A hotly contested micro-nation off the coast of Montserrat.

A city continually buried under the ash of a volcano that has been erupting for more than 15 years.

This mountaintop lake bubbles and steams in a perpetual boil, thanks to its direct link to the Earth's interior.

A Barbados crypt where it's said that the coffins refuse to stay put.

The cell which saved the life of Ludger Sylbaris, "the man who lived through Doomsday."

A natural tidal swimming pool is ringed by bizarrely artistic lava rock formations.

This century old flensing port is a remnant of a culture for whom whaling is still legal.

These eclectic homes nestled into the cliffs of a Caribbean island were built entirely from scavenged materials.

The mouldering manses of wealthy colonials still pock the streets of a Curaçao neighborhood.

Shipwrecks, ruins, and turtles are all that remain on this haunting Caribbean ghost island.