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.
(..) He gets the Esquire Magazine award for the best-dressed gangster. The newspapers praise him because he hires Blacks, which shows he has a good heart. He is famous. Who knows? Maybe one day he'll make all of you popular. It's true. I make more of a bella figura. That is my nature. (..)1990 The Godfather Part III