If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

The oldest continuously occupied public building in the United States.

This giant pocket watch is the third iteration of a local landmark that has been standing just off the Santa Fe Plaza for over 100 years.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

This 28-foot-tall milk can contains one of the most whimsical ice cream parlors in town.

A picturesque (all-natural!) beach in a landlocked state.

This vintage theme park is peak Christmas kitsch—and it's open all summer.

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

Pompeii's less famous neighbor is still revealing her secrets.

Well-preserved, still-functional sliding wood doors from Ancient Rome can be found in this Vesuvius-stricken house.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

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

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

Plaques on its facade commemorate the Tiber's most destructive deluges.

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

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.

A Nesting Doll of Churches.

A rather vulgar example of the transition from Latin to the Italian vernacular.

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

These medieval skyscrapers dominate the skyline of this small Tuscan town.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Drink wine handed out through a window as part of an age-old tradition.

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