Ключевые слова: abbey, architecture, belief, bell, blue, building, cathedral, christian, christianity, church, cross, desert, dome, facade, faith, famous, god, heritage, hermitage, historical, holy, icon, kaluga oblast, kozelsk, landmark, monastery, mother of god, old, optina, optina monastery, optina pustyn, orthodox, outdoor, people, pilgrim, pilgrimage, place, pustyn, religion, russia, russian, sacred, saint, temple, tourism, tower, travel, tree, virgin, worship,