An outstanding monument of architecture in Art Nouveau style, designed by A.I. von Gauguin in 1904-1906.
Hostess of the mansion was a famous prima ballerina of the Mariinsky Theatre Mathilda Kschessinskaya. F. Chaliapin, A. Pavlova and S. Diaghilev often visited her house. This house has a rich revolutionary history. Here, since April till July of 1917 was placed the Petrograd Committee of the Bolshevik Party, and V.I.Lenin was making his speeches from the mansion`s balcony.