trinity sergius lavra, sergiev posad, russia.

altar ancient arches architecture basilica bell building cathedral chapel christ christianity church cross cupola day destination eastern europe european exterior famous fortification fortress frescoes friary gild golden heritage historic history holy icon images immaculate jesus landmark landmarks lavra light mary men monastery old onion orthodox orthodoxy outside patriarch posad religion russia sergiev sergius sightseeing site sky spire sunlight symbol tourism tower traditional travel trinity unesco urban wall window world worship yellow