Palacio da Bolsa, UNESCO World Heritage Site, Porto (Oporto), Norte, Portugal, Europe

porto oporto portugal architecture historical building landmark european architecture tourism travel heritage culture clock tower statues gardens exterior sightseeing history exploration scenic views north portugal open space visitors beautiful architecture cityscape public square cultural site day time blue skies green grass ornate design neoclassical monuments urban landscape heritage site sightseeing spot tourist attraction old town civic building local attractions travel destinations history enthusiasts architectural detail historical significance guided tours nature art public art city park landmark building historic landmark