The frame below should contain a 3D model. If you don't see that, use a modern browser such as Chrome, Safari, or Firefox with WebGL enabled.
Also, your graphics card's latest drivers (supporting OpenGL) must be installed.
Finally, anti-aliasing must be enabled in your Graphics Properties (3D Settings), if it's supported.
Right Arrow/Left Arrow = Y rotation
Up Arrow/Down Arrow = X rotation
Page Up/Page Dn = zoom in/zoom out