The meeting of the northwestern corner of Delaware, the northeastern corner of Maryland, and the southern edge of Pennsylvania.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

The historic home still shows the scars from a little run-in with the British in 1813.

WWII-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers. .

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

Civil War dumping ground for the bodies of terrorized Union sympathizers.

A massive sea stack famous for its appearance in The Goonies.

A Roman-style column in Oregon hides a spiral staircase inside.

100-year-old shipwreck you can walk up to at low tide.

A plaque commemorates the spot in the Oregon woods where the first-ever Geocache was hidden.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

The shortest river in America flows for just 201 feet.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

A monument to the center of the North American continent may be off by a few miles.

A small Wyoming town is home to the state's oldest-operating soda fountain.

Visitors come from all over to bring gifts and tokens to the grave of Alice, who is thought to have died of a broken heart.

One of the oldest living oak trees in the Southeast.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

The highest point in South Carolina was once owned by an energy company that neglected it but now the state is taking it back.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.