Underground tunnel connecting Gatchina Palace with Serebrianoe Lake, near Saint Petersburg. Russia, December 23, 2005
Underground tunnel connecting Gatchina Palace with Serebrianoe Lake. Gatchina, suburb of Saint Petersburg, Russia, February 12, 2013
Underground tunnel connecting Gatchina Palace with Serebrianoe Lake, view to the south. Gatchina, suburb of Saint Petersburg, Russia, February 12, 2013
Underground tunnel connecting Gatchina Palace with Serebrianoe Lake. Gatchina, suburb of Saint Petersburg, Russia, May 17, 2015
Cup mushrooms Ciboria batschiana on underground acorns in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 26, 2017
Cup fungi Ciboria batschiana on underground acorns in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 26, 2017