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.
(..) Oh, really... Who do you know there? - Which building? - What do you mean which building? But, man... Berlioz was a famous composer before your residency was called after him. Writer, critic of the th century. It's a joke. I know who Berlioz is. But I see humour is like music for you. (..)2011 The Intouchables