Landscapes: steppe, foothills, wooded mountains, snowy mountain peaks, mountain stream; gorge, glaciers. Tien Shan mountains. Photo portraits, a picturesque portrait of the Russian geographer, traveler, explorer of the Tien Shan mountains, Lake Issyk-Kul PP Semenov-Tyan-Shanskiy. Drawings by the artist Kosharov, who accompanied P.P.Semenov on his journey. Pages from the diary of P. P. Semenov; animation: P.P.Semenov's map-route to the Issyk-Kul lake. View of the Issyk-Kul lake. Books on the geographical description of Russia, published under the editorship of P.P.Semenov-Tyan-Shansky. 17-volume work "Picturesque Russia". "Memoirs of P. P. Semenov-Tyan-Shanskiy". Photo: P.P.Semenov-Tyan-Shansky in a group of members of the Russian Geographical Society.