Sometimes science is so blinded by tradition that even the obvious is not allowed to be seen.
If you were a scientist would you risk ridicule by investigating ghosts, and imagine what would happen if you said that they actually existed.
Chindi: Ghosts of the Navajo - Factual/Belief
Christopher Marlow, Doctor Faustus, and the Greatest Elizabethan Actor - True(ish)
The Forbidden Island, Venice, Italy - Semi Serious
Friesians, or the cost of milk - Light Hearted