Re: Cool photos...
Just had this link sent to me, you will have to copy and paste the web address into IE or whatever you use as it does not seem to work on this page, worth the effort even if you are not religious.
http://www.vatican.va/various/basiliche/san_giovanni/vr_tour/index-en.html
On an HD monitor this is fabulous. You can look around, up and down and zoom in and out.