Mystery Building Contest

I happened upon this picture a couple days ago as I was browsing through various computer files. Michael described it as ghostly. It does look a bit R.L. Stine-ish...

And just for kicks, I have decided to give a free training session or fitness advice (if distance is an issue) to the first person who guesses it correctly. If you would like to participate, use the comments section to make your guess. Also stay posted... I will be revamping the fitness portion of my blog this coming month.