Revealing mistake: In the first scene, when Nicholson is driving to the Overlook, the shadow of a helicopter can be seen at the bottom right. This is only visible in the un-matted VHS print and fullscreen DVD. (00:01:05)
Revealing mistake: Wendy has a baseball bat in her hand and Jack is trying to get the baseball bat. When Wendy hits him over the head, the baseball bat bends.
Revealing mistake: In the shot just before when Jack finishes axing the bathroom door, one of the broken pieces of wood is resting against the camera.
Answer: It was The Gold Room. The skeletons are simply those of past guests: we never learn their identities.
Not the Gold Room. It's the lobby area you see earlier in the movie when they first get there and Jack is sitting in a chair reading a magazine.