Landscape of Central Russia: forest, river. Autumn landscape of Yasnaya Polyana. The halls of the Leo Tolstoy Museum in Yasnaya Polyana. Landscapes of the museum-estate of the artist V. D. Polenov. General view of the artist's house-museum. Landscapes of Meshchera in the Ryazan region. Morning landscape of the river, mowers in the field, pine forest. The animal world of Meshchera: moose, hares, foxes, squirrels. Schoolchildren, members of the "Green Patrol" are in the forest, laying flowers at the monument to the soldiers who died in the battles for Moscow. Rest of tourists in the forest. View of the garbage left by tourists in the forest. General view of the Rybinsk reservoir. Floating laboratory of the Institute of Inland Waters. Scientists are examining the water for pollution. Professor of the Department of Nature Protection at Kazan University V. Popov conducts classes with students.