fortress wall with towers, church of st. sergius of radonezh, south gate, boris and gleb monastery, borisoglebsk, rostov district,

architecture blue boris borisoglebsk brick cathedral christianity church clouds district faith famous fivedomed fortified fortress gate gleb history irinarh leafless local lore medieval monastery museum nature oblast orthodoxy outdoors place radonezh region religion rostov russia russian saint sergius south spring stone tower towers tree village wall with yaroslavl