National Geographic Walking Barcelona, 2nd Edition

National Geographic is a renowned authority in cartographic excellence. For 119 years the Society's maps have helped spread geographic knowledge around the globe. A vast database allows National Geographic to combine the latest data gained by space-age technology with innovative digital mapping techniques to create state-of-the-art political, physical, and thematic maps. The Society's meticulous research and attention to detail have established a standard of achievement that is unparalleled.