It was once the base for a series of domestic terror attacks.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A brass plaque dedicated to a convicted cannibal hangs in the National Press Club, and that's not even the craziest part of the story.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

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

‘Bush the old fire dog died of poison July 5th, 1869. RIP.’

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.

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

Obscure Freemasons still live in D.C.’s largest private residence.

A Spiritualist house of worship where believers communicate with the dead in the spirit world.

The district's only illusionarium supports free writing programs for local students with every purchase.

Giftshop catering to cryptozoologists and anyone with a sense of humor.

Curios, scientific antiques, oddities for sale.

According to local legend, a tree grew from the stake that killed this alleged vampire. In reality, he probably died from influenza.

Inside this casino, visitors are treated to slot machines and a rare German Christmas pyramid.

Open-air cremations in Colorado's self-proclaimed spiritual mecca.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

A river runs through this remote valley in a very unexpected way.

Over 1.3 million confiscated wildlife products fill this macabre menagerie of illegal animal specimens.

A mental health hospital dating back more than 139 years, now features a museum.

Even in death, he's still your huckleberry.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.