Boo?

http://commons.wikimedia.org/wiki/File:FremantlePrisonWindowIllusion.JPG
Image: Wikimedia Commons

Undoctored photo of a church window at Fremantle Prison in Western Australia.

Skeptics say the image in the center is just rippled glass. Believers say it’s the face of Martha Rendell, who was hanged there in 1909 for killing her children.

“I can believe anything,” wrote Oscar Wilde, “provided that it is quite incredible.”