Lorelei's Central Europe
The revised text of the book edition of Blondes includes two new locations that did not appear in the magazine, both in Vienna. The Hotel Bristol is identified as the location Lorelei stays, and where two of her suitors come into uncomfortably close contact. Second, the Chapeau Rouge is identified as a cabaret Lorelei goes to with Mr. Eisman in the evenings.
Interestingly, the Chapeau Rouge and another location on the map of Central Europe appear to be the two places where Anita Loos made errors with real life locations. There does not seem to be a record of a Chapeau Rouge in Vienna--although there was one at that time in Budapest, Lorelei's subsequent destination. Also, while Lorelei stays at the Ritz in Budapest like she does elsewhere, there does not appear to have been a Ritz Hotel in Budapest at that time (although there is one today).