A detailed pachyderm supports Rome's smallest Egyptian obelisk.

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

This ancient market is often referred to as the oldest shopping mall in the world.

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

These hut foundations are believed to be the residence of Romulus, founder of Rome.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

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

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

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

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Breathtaking and huge 430 year old maps of Italy.

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

Ancient snack bar of the Roman Empire re-opened.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Erotic art covers the walls of the largest ancient pleasure palace.

The walls and streets of the ancient city are peppered with penises.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

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

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

This natural wonder is disappearing at an alarming rate.

Though many were skeptical at first, these animal-specific routes across the Trans-Canada Highway have been a major conservation success.

The natural hot spring that was integral to the creation of Canada's first national park.