little-known technique called "stereoscopic free viewing" allows two dimensional photography to step into the 3-D world.
It takes very little practice and the rewards are well worth the effort.

       When you click on the thumbnails you will see two nearly identical images.  To view the image in 3-D, pretend you're 10 years old, stare at the seam between the two photos and very slightly, gradually cross your eyes. Suddenly you will see in 3-D.
       Be patient.  You will  see three images. Concentrate on the middle one.  You don't have to be upclose for this to work but you do need to be young at heart..