A piece of outsider public art accompanied by a strange urban legend.

A folk art mecca famous among outsider art fans.

Rotting dome home spotted near Chapel Hill, North Carolina.

Wander through more than 20,000 square feet filled with an amazing collection of orchids.

One of the few surviving original NASCAR dirt-track speedways.

The scene of the largest surrender of Confederate troops at the end of the American Civil War.

This research center for rare prosimians is studying how they sleep to help prolong human life.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

This simple stone memorial remembers a secret, Geneva Convention-defying interrogation base from WWII.

The romance of early commercial flight still fills this Art Deco destination.

A massive, majestic mammal watches over pedestrians from his perch atop a former B.P.O.E. lodge.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

A mammoth pair of Civil War artillery guns abandoned out in the forest.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

This grand gothic brewery has been pumping out suds for over a hundred years.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

The early data processor factory founded in Washington for the 1890 U.S. Census went on to become IBM.

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

A small token of gratitude from freezing cold journalists who were given a warm haven while covering JFK's inauguration.

Helen Keller once broke ground on this historic center for the study of technologies to benefit the hearing impaired.

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

A hoard of sky catalogs, astrophysical journals, even the works of Galileo and Copernicus.