Fossilized sea bottom and lime quarry.

This one-man homegrown eatery may be the world's most exclusive restaurant with its five-year waiting list.

A gigantic 10-foot tall stone man.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

Tucked away in downtown Westerly is America's first shark history museum.

Ever hear of the Milazzo Cage?

One of the most important yet well-hidden museums dedicated to the history of medicine.

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

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

This delightful little museum is dedicated to only one thing: pasta.

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

The Pope’s secret escape route.

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

A fairy tale castle in modern Rome.

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.

2300-year-old Roman road connecting the empire.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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