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.
(..) my looks will go, they will discover l can't act, and l will become some sad, middle-aged woman... who... looks a bit like someone who was famous for a while. No, nice try, gorgeous, but you don't fool anyone. Pathetic effort to hog the brownie. - Thank you for such a terrific time. (..)1999 Notting Hill
(..) Cappuccino, as ordered. Thanks. l don't think you'll believe who was just in here. Who ? Was it someone famous ? Would be exciting, though, wouldn't it, if someone famous came into the shop ? Hmm ? Do you know-- (..)1999 Notting Hill