Sergey Nikitin-Rimsky: PhD. , musician, historian of cities and architecture, specialised in the twentieth century. He s been teaching history of architecture in the universities of Moscow, was a visiting professor at the University of Verona and Politecnico of Milan. He is senior researcher at the Museum of Moscow. Current projects: courtyard studies, industrial heritage. Nikitin-Rimsky is a founder of VeloNotte a series of 26 thematic nocturnal architecture bike rides in Rome, London, Istanbul, Berlin, Moscow, St. Petersburg, Irkutsk, New York, Ivanovo, Kazan, Florence, and Verona.