To reach the Tretyakov Gallery from the AST-Hof Hotel, walk to Bagrationovskaya Metro Station, about 700m away. From there, take the light-blue line seven stops east to Alexandrovskiy Sad. Change there to the grey line from Borovitskaya, and continue south one stop to Polyanka. The Tretyakov Gallery is just over ten minutes' walk from the metro.
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