Monastery of Alcobaca, UNESCO World Heritage Site, Alcobaca, Oeste, Portugal, Europe

monastery alcobaca unesco world heritage west portugal europe gothic architecture stonework interior arches rose window historical site cultural heritage religious building tourism travel medieval landmark architecture pilgrimage spirituality art history heritage site large halls tall ceilings serene atmosphere sacred space visitor experience exploration local culture ancient design craftsmanship beauty tranquility icon sacred architecture light shadows symmetry entrance pews columns reflection historical landmark sacred history visitor attraction region