The ones with the animal symbols on them? How the hell do you open them? I opened the first one I encountered by trial and error, but that doesn't seem to work on the other one I've run in to. I think it might have something to do with the pictures on the walls, but I'm completely stuck.

@ZimboDK: If you're talking about the door with three discs that you can rotate then that's actually a puzzle where you've got to match the three symbols together. You should've picked up something like a golden dragon claw somewhere. The matching symbols are on those. Just examine it in your inventory to see them.

...I would never have figured that out on my own. Thanks.

When you get the claw, you also get a Journal. The clues are in the Journal