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.

An obscure public service from the U.S. government that redeems burnt, moldy, and soiled old greenbacks.

A painfully obvious spy house sits right across the street from the Russian Embassy.

Home to items never before seen by the public.

Race through the maze, get your name on the sign.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

European castle ruins in an American state park are actually the product of death and grief.

This abandoned prison castle has become an imposing gallery of graffiti art.

A provocative museum dedicated to the genre and the harsh realities that inspired its origins.

An underground magnet for ever-changing street art.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

The holiday spirit lingers year-round in the "Christmas City of the High Plains."

An annual festival celebrating Colorado's most famous frozen corpse.

A collection of the best toys ever made, The National Toy Hall of Fame is filled with kids, fun, and for some reason, a bird preserve.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

An eerie, derelict amusement park in Berlin.

A terrific purveyor of natural history objects and curios.

A winding, blood-red tunnel of hardened lava navigable by foot.

Climb right into the heart of this colorful Iceland volcano.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A multiversal transit station located right below a highway interchange.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

MIT students continue the legacy of beloved professor "Doc" Edgerton through learning by doing.