Provides access to a digital collection of historical color fire insurance maps, real estate atlases, and similar land use maps for North America. High definition, color and gray-scale images display important historical details not visible on black and white map scans. Includes map research tools and search tips to make finding maps for a specific location easy. Maps include publications by Sanborn, Perris, Hexamer, Whipple, Baist, Bromley, Hopkins and others.