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.
(..) Dialogue: Marked=..,Default,NTP,!Effect,Goodbye. Dialogue: Marked=..,Default,NTP,!Effect,-See, Harry? You're famous.\N-But why am l famous, Hagrid? Dialogue: Marked=..,Default,NTP,!Effect,All those people back there,\Nhow is it they know who l am? (..)2001 Harry Potter and the Sorcerer's Stone
(..) Dialogue: Marked=..,Default,NTP,!Effect,-They really are--\N-The only family he has. Dialogue: Marked=..,Default,NTP,!Effect,This boy will be famous. There won't be a child\Nin our world who doesn't know his name. Dialogue: Marked=..,Default,NTP,!Effect,Exactly. (..)2001 Harry Potter and the Sorcerer's Stone