If you get a chance to see the Body Worlds exibit, do it.
I went through the exhibit this weekend and I was facinated. These are real bodies on display.
This is the process where they use a type of plastic to preserve the body. You will see about 20 bodies in different poses and each body is displayed so you can see all throughout the body, the brain, the circulatory system, the skin, the nerves. It is something to see. You can go online to Body Worlds and get a preview, but this is a don't miss.