Old Maps Online is a search portal that combines the historical map collections of several organisations around the world. Users can search across collections through a single interface and easily locate multiple maps of a geographical area.
The interface is free and access is open to all users. A wide range of different types of map are available, including: land maps; sea charts; boundary and estate maps; military and political maps; and town plans.
Historical maps of many countries are available - including South and Central America from the 16th to the 20th centuries; Britain and particularly London, up to 1860; North America in the 18th and 19th centuries; pre-1900 Dutch Maps; the North West of England; and Moscow.