 Round courtyard of Ustinov - Petrov House at 92 Fontanka River Embankment, looking up. Saint Petersburg, Russia, June 11, 2014
 D. F. Ustinov Baltic State Technical University "Voenmekh" near subway station "Tekhnologicheskiy Institut". Saint Petersburg, Russia, September 9, 2002
 Round courtyard of Ustinov - Petrov House at 92 Fontanka River Embankment. Saint Petersburg, Russia, June 11, 2014
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