America's first public mental health facility.

Hop on the train and tour an elaborate miniature town made completely of junk (including the train).

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

The highest point in Virginia can only be reached by passing through ponies and flowers.

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

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

The first declared National Monument in the United States.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

One street divides a single town that stands in two U.S. states.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.