This abandoned Victorian-style house was built in 1884.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

A remarkable time capsule of American manufacturing deep in Maryland coal country.

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

This abandoned sea fort has become an accidental bird sanctuary.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

This Maryland farm is known for its amazing corn mazes and its 30-foot junkbots.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

An intricately designed junk art house with four extravagant junk art cars hidden in the suburbs.

A hidden alley in urban Baltimore is a haven for graffiti artists.

Bizarre Cavern.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

An eerie, decaying ghost town destined to fade into the forest.

Remnants of a storybook amusement park hidden behind a strip mall.