Persuasive Cartography -- The PJ Mode Collection -- "This is a collection of “persuasive” cartography: more than 800 maps intended primarily to influence opinions or beliefs - to send a message - rather than to communicate geographic information. The collection reflects a variety of persuasive tools , including allegorical, satirical and pictorial mapping; selective inclusion; unusual use of projections, color, graphics and text; and intentional deception. Maps in the collection address a wide range of messages: religious, political, military, commercial, moral and social."
CartoMundi has scanned more than 6,500 (mostly) topographic maps of world. The website is in French but has an English button. Most of the maps are in French.