The collection contains reports presented at the scientific conference "Problems of studying monuments of early Moscow architecture," held at the Zvenigorod Museum on September 22, 2005. It contains the latest research in the field of history, architecture, painting of the initial stage of the formation of Russian statehood with a center in Moscow. In addition, the dissertation of the architect B.A. Ognev, which was not presented to the readership due to the premature death of the scientist. The Zvenigorod Museum is honored to pay tribute to the work of this modest researcher and present his work to the modern reader.