This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

An original apothecary from 1792.

After hundreds of years of settlement, this once-bustling fishing village sunk into the Chesapeake Bay.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Housing the National Women's Party since 1929, this historic house is now a monument to the fight for gender equality.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

An astounding collection of medical specimens, including bits of President Lincoln.

A benevolent, 16-foot-tall river dragon lives on a suburban lawn.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

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

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

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

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

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

This free, take-a-book shop seems like a trick but isn't.

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

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

The trials and tribulations of marking Poe's grave.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

This statue is dedicated to Grace Sherwood, the last person in Virginia to be convicted of being a witch.