Was the room named after anything significant? It seems odd to me that he would name such an important piece of the novel after nothing, but maybe I am just looking too hard.
Room 101 is named after a conference room at Broadcasting House. Orwell used to sit through boring meetings there.
When it was to be demolished at the BBC, Rachel Whiteread made a plaster cast and it was displayed in the Victoria and Albert Museum, from November 2003 to June 2004.