In the 1920s Berlin was a veritable 'Sodom on the Spree' with 85,000 lesbians, open prostitution and an outrageous club and revue theatre scene - in explosive political circumstances. The young gay British writer Christopher Isherwood wove his experiences in Goodbye To Berlin (of Cabaret movie fame). This excellent one-hour tour through Isherwood's Berlin around Nollendorfplatz is spiced up with quotes and references to notorious 1920s party-goers like Anita Berber and Marlene Dietrich.