David Ramsey Map CollectionThe David Rumsey Map Collection was started over 30 years ago and contains more than 150,000 maps. The collection focuses on rare 16th through 21st century maps of North and South America, as well as maps of the World, Asia, Africa, Europe, and Oceania. Items range in date from about 1550 to the present. Digitization of the collection began in 1996 and there are now over 91,000 items online, with new additions added regularly. The site is free and open to the public.