ancient historical building of orthodox church cathedral in optina monastery

building church landmark cathedral chapel tower monastery dome basilica temple synagogue steeple spire architecture facade ancient historical orthodox russia ukraine belorus slavic people faith beleifs christianity pokrov vvedenskiy vvedensky winter stone wooden brick block cross cupola christ religion sacred canonical dogmatic sightseeing tourism travel monumental memorial sky pray bell icon god savior saint soul journey yaroslavl peterhoff peterghof petersburg velikiy novgorod great valday uglich kalyazin optina