I found this on the net today and thought it might provoke discussion.

http://sepientia.com/2010/01/have-seen-ghosts/

That does look cool.  It actually looks like the kind of thing I'd like in my backyard.  Ghosts seem so easy to fake.  You can get "ectoplasm" while puffing a cigar right next to someone that's taking a nighttime picture.

Recently the wife and I were up at Gettysburg.  We walked up to cemetery ridge and there was a guy trudging across the field dressed in a civil war corporal's uniform.  You see these peolpe all over Gettysburg - they work in shops, reastaurants, and as tour guides.  I nudged my wife and said "if we started snapping pictures, we could pass one of those off as a ghost photo!"  The light was just perfect. 

I actually kind of admire the audacity of Grant from TAPS - his fakery is so mundane and yet so sublime at the same time!

Here is some information about Rhyolite Ghost Town.  The link below has a number of interesting pictures of ghost art.

Rhyolite ghost town is located in the Bullfrog Hills, about 120 miles northwest of Las Vegas, near the eastern edge of Death Valley. There are a number of weird and bizarre works of art strewn around this ghost town. Several artists have installed permanent ghost sculptures in this ghost town.

http://thewondrous.com/2010/02/rhyolite-ghost-town/