Roman Bridge, UNESCO World Heritage Site, Merida, Estremadura, Spain, Europe

roman bridge merida estremadura spain reflection arches water green trees historical architecture travel tourism european landmark ancient rome outdoor sightseeing river blue sky heritage culture scenic view exploration historic bridge stone construction nature tranquility attraction landmark beautiful landscape visiting famous sites iconic structures travel destination inviting scenery ancient history engineering preserved site cultural heritage leisure tourism destination outdoor activities picturesque vibrant nature bridge architecture weekend getaway enjoyment relaxation blue waters vibrant colors cultural significance sightseeing tours