An unsuccessful attempt to open a small-scale museum was made in 1911, and subsequently during the October Revolution in 1917 the estate was burnt down. On March 17, 1922 Mikhaylovskoye, Trigorskoye, and the tomb of Pushkin in Svyatogorsky Monastery were declared a state monument and opened as a museum (the Pushkin Museum Reserve). In 1936, the whole Svyatogorsky Monastery was added, as well as the estate of Petrovskoye, which formerly belonged to Pushkin's uncle, and adjacent areas.