A popular tourist cave with a dark past.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

An early-19th-century hotel with a past that is steeped in the Civil War.

An eerie smiling woman looms above the granite tombstones.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

"X" marks the spot of an echo chamber in the middle of a plaza.

The arch that celebrated the completion of the Lincoln and Victory highways.

The self-made house sculpture of an outsider artist who named himself "Chief Rolling Thunder."

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

An inconspicuous footbridge beloved by San Diego locals.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A vertically floating hemlock controls the waves and weather at Crater Lake.

A public fountain that spouts "health water" from a nearby spring.

I Street Bridge is the heaviest swinging center bridge in the United States.

This roadside stop between Goblin Valley is the perfect location to view some of the region's natural wonders.

Largest man-made excavation on earth!

A tunnel with windows, so you don't miss out on the impressive views.

A desert settlement founded and later abandoned by Hawaiian members of the Church of Jesus Christ of Latter-day Saints in Utah's Skull Valley.

Jurassic Park—A Still Life.