Landscape, being largely a representation of nature, is constructed through our imagination. This process gradually forms collective, continuously mutating memories which constitute the biography of each of our countries. The scientific spirit of the 19th Century opened paths through which people were able to explore the different regions of North America. This same spirit was reflected in different areas of exploration including geographic exploration, archeology and ethnology. In the 20th Century, traditional land- scape art lost the prestige which it held as a legitimate form of artistic representation. Instead the very definition of landscape art was broadened to include other genres of art.