The hotel is 'famous as' the place where the treaty was signed.
a 'famous' entertainer/explorer/athlete/politician
The hotel is (justly) 'famous for' its luxury.
(..) What do you mean, more careful? I mean, this isn't a deerstalker now, it's a Sherlock Holmes hat. I mean, you're not exactly a private detective any more. You're this far from famous. Oh, it'll pass. It better pass. The press will turn, Sherlock, they always turn and they'll turn on you. (..)2012 TvShow: Sherlock Title: The Reichenbach Fall Season: 2 Episode 3