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 region, 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,