Visible Body - Visualise your body

While this is a sort of biology tech online app, I think it's one of the most awesome things ever! I wasn't really fond of biology, but that was really due to the taxonomy part of it, the human body is a great thing to learn about.

Visible Body is a free, fully 3D system, that shows you detailed models of some of the human body's most important parts. You need Internet Explorer (boooo!) with a plugin they supply and your off. The skeletal system downloads automatically, which lets you explore all bones in the body, panning about, zooming in and so on. Other interesting models like the circulatory system, nervous system and muscular system and a few others are also available, adding them is a simple click matter and they will download in a jiffy.

The coolest thing is though that it shows all this element by element. You don't just get a heap of bones to look around in. All bones are labeled in the sidebar so you can easily find and identify them. Even arteries, muscles and so on are labeled, a job well done by the developers.