I am a serious fan of skeletal systems, those bits of organic sculpture / architecture that each of us carry around inside us — pardon, of course to the readers of this blog that are cephalopod or who have exoskeletons. You critters are too wonderful for mention. Don’t go changing.
Certainly IMHO the skulls are the coolest, like this multi-view scan of a human skull but the other bones are fascinating as well.
The only thing you can’t do with these bones is make broth.