On 15 August 1893 the official opening of a museum under the name "Pavel and Sergey Tretyakov City art gallery" (nowadays Tretyakov Gallery) took place. By 1890 it was visited by up to 150 thousand people annually. Tretyakov continued to build up his collection, for example, in 1894 he donated a gallery of 30 pictures, 12 figures and a marble statue “The Christian martyrs“ works by M.M. Antokolski. He was also involved in studying the collection, and from 1893 he produced its catalogue.