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

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

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

The trials and tribulations of marking Poe's grave.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

A lone historical marker off the highway and scattered debris are all that remain of this Cold War-era missile site.

This sprawling farm was once a Cold War-era hideaway for the nation's top diplomats.

Developed by focused shutterbugs, this museum exposes visitors to more than 6,000 different cameras.

The oldest arched-covered bridge in Virginia has truly withstood the test of time.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

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

This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

This collection of over 50 classic pinball machines awaits visitors to downtown Roanoke.

This historic mansion was built as a symbol of love between a husband and wife.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

Conveniently located within binocular range of a nuclear bunker, the "summer camp" area was a painfully obvious spy house.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

The oddly shaped, steam-spewing building is now an art studio and gallery.

An overgrown garden stands as a grim marker of an unrealized dream.

The airport was once a Civil War battleground, and the earthwork defenses can still be seen today.

The grave of a champion Thoroughbred hides within the former presidential estate.

This museum explores the grim reality of life in the earliest British colonies in America.

A small, forgotten prison cemetery marked only by a wrought-iron fence and eerie depressions left in the ground.