The spiritual and educational center of the Tsarskoye Selo deanery and the church of St. Sergius of Radonezh in Pushkin (St. Petersburg). The church was built in 1889-1889 on the project of A. G. Uspensky.
Photos of the cathedral interior you can see on this link: Decor of the Church of St. Sergius of Radonezh in Pushkin.