From 1881 his gallery became popular (by 1885 it was visited by about 30 thousand people). In 1892 Tretyakov inherited a collection of Western European painting from his brother and placed it in two halls of the western school. The collection in Tretyakov's gallery was equal in importance with the largest museums in Russia at that time, and became one of sights of Moscow. In August 1892 Tretyakov donated his collection and a private residence to Moscow. By then in the collection there were 1287 pictures and 518 graphics of the Russian school, 75 pictures and 8 figures of the West-European school, 15 sculptures and a collections of icons.