Continuity mistake: Wendy is smoking a cigarette when Danny starts screaming, then she runs into the bedroom and opens the door, and doesn't have the cigarette.
Continuity mistake: In the scene at the beginning of the film, when Doc and Mr. Hallorann are eating ice cream, if you pay attention to Danny's hands, they move from folded in front of the ice cream bowl, to the back, and so on. They move about 5 times, each different.
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.