This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

The site of the first "historically true" UFO encounter in the U.S.

A pig barn converted into one of the most eclectic residences in Nantucket.

This museum dedicated to local history is housed in the state's oldest surviving fire station.

A natural arch offers panoramic views of Yangshuo's karst hills.

The meaning behind this triumphal Roman arch was a mystery until the early 20th century.

The world's largest natural arch was forgotten for over 50 years after its discovery.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

This magical-looking island is notorious for the misfortunes suffered by its owners.

A strenuous, unofficial trail leads to spectacular views in one of America's most remote national monuments.

Unscathed for almost 2,000 years, the best preserved Roman triumphal arch is in a small southern Italian city.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

The fifth-longest natural arch in the world, and the longest outside China.

Unlike most arches, this geological oddity formed in a volcanic dike.

This clifftop arch is a natural stunner.

It's safe—and permitted—to walk across these twin natural sandstone arches.

The hallowed remains of a 900-year old Ancestral Pueblo great house.

A regular looking rock with an unbelievable history.

This large, circular tomb is the final resting place of the first emperor of Rome.

A headstone notes where the most famous of Robin Hood's legendary Merry Men is reportedly buried.

This now-abandoned part of the original transcontinental railroad route provides a surreal driving and historical experience.

A psychedelic labyrinth on the San Francisco bay.

At this gas station in the middle of the desert, a convenience store has been carved directly into the rock.