A collection of artifacts from Maryland's maritime past.

This one-room cabin where the young colonel slept during the French and Indian War.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Herbert Hoover's "Brown House" rural presidential retreat was a PR disaster amid the start of the Great Depression.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

This 19th-century church is now a popular roller rink.

The second oldest continuously operating bar in Louisiana.

The site of the climactic scene from the classic horror film is now a historic landmark.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The "first cat," "first dog," and even a presidential pygmy hippo all get their due in this museum.

Right next to departures—how convenient!

Once forgotten and built over, this historic Black cemetery now houses a poignant memorial.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

An original apothecary from 1792.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

Amazingly, this old machine within the Resorts Casino still functions.