church of saint nicholas the miracle-maker

church saint nicholas miraclemaker sofia architectural dome architecture balkans beautiful bell tower blue building exterior built structure bulgaria bulgarian culture capital cities chapels christian christianity steeple city color cross shape cyrillic eastern europe europa european facade gold metal colored green historic historical history horizontal icon landmark monument people old ornate orthodox pilgrimage place worship prayer religion religious sacred sight sky slavic spirituality summer temple tour tourism town tradition travel destinations urban visit miracle-maker center