Keywords
archaeological zone, castile-leon, castilla-leon, cave, color image, cultural, cultural landscape, cultural park, ecosystem, el bierzo, eroded, europe, gallery, geology, gold, gold-mine, historic, history, horizontal, human, indoors, interest, interior, las medulas, leon province, mine, mining, mountain, natural monument, natural space, nature, orange, people, perspective, physical geography, pixtal, ponferrada, property, red, reddish, rock, roman, rough, rugged, spain, stone, travel, tunnel, underground, unesco, world locations, world travel, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, we036920