Your old high school physiology class wishes it was BODIES... The Exhibition.
I got a free ticket to Bodies after donating blood at a drive held at the Tropicana, which is the same venue that hosts Bodies. Already in the medical frame of mind, I found this incredibly fascinating. All of the displays are actual human bodies preserved, chopped up and dissected to show us all how we work. You get a look at the skeletal, nervous, endocrine and other systems. For a nominal fee you can get headphones that come with a soundtrack to guide you through the exhibit.
There's also a portion of the exhibit that comes with a warning that shows preserved human fetuses in varying stages of development. Incredibly interesting to see something like that close up. You also learn where these bodies come from. Turns out many of them are from China. Just passing through the exhibit makes you think not only about what you're seeing when it comes to the science of it all, but also works your imagination. I kept wondering who these people were, what they were like, etc.
In short, do yourself a favor and go see this. I could see how it would be a great field trip for any high school or college science class.