Валаамский монастырь
Alexey Maksimovich Gornostaev (, February 18, 1808 – December 18, 1862) was a Russian architect, notable as a pioneer in Russian Revival, the builder of Valaam Monastery hermitages, Trinity-Sergius Convent in Saint Petersburg and Uspenski Cathedral in Helsinki. He is credited with the rebirth of traditional tented roof architecture of Russian North.