Tourists visiting the Monastery of Serra do Pilar Nova Gaia in Portugal

monastery of serra do pilar vila nova de gaia portugal daytime architectural details preservation historical building structural design historic monastery portuguese heritage architectural elements religious architecture wall ornamentation exterior stonework architectural craftsmanship cultural heritage stone walls historic walls religious heritage stone masonry historical stonework exterior design portuguese culture religious significance architectural elegance stone facade exterior view facade wall exterior stonework view structure aesthetics excellence uniqueness elegance features elements beauty charm intricacies heritage details historical people site significance monument