Two-Headed Calf
Goodwell, Oklahoma
The open range of the Oklahoma Panhandle was called "No Man's Land" while the U.S. government tried to keep settlers off of it. The government gave up in 1890, and the No Man's Land Historical Museum tries to preserve its legacy. The big draw of the museum (for us, anyway) is its stuffed two-headed calf, but there are other exhibits of note, including dinosaur footprints, a barbed wire collection, and what the museum claims is the first printing press to cross the Mississippi.
The calf was born on a farm 12 miles north of town in 1932. It lived for a few weeks, died, then was stuffed by students at a local college. It's been in a glass case at the museum for decades, maybe even since it opened in 1934.