SVG is a vector graphics format. SVG has advantages over PNG for creating world maps of arbitrary detail or zoom level, certain editing purposes, saving layers, and rescaling text, curves and lines. SVG is preferred: see Wikipedia:WikiProject_Maps. World98.svg: First level administrative boundaries of countries, anno 1998, intended to be used to generate other SVGs and PNG maps Worldmap_location_NED_50m.svg: Equirectangular projection, generated from Natural Earth Data (paths grouped by Country and sovereign region) north_america98.svg: national primary level divisions as of 1998. Note that lakes are not shown, which makes the Great Lakes region, and in particular Michigan appear unusual since the administrative (over-water) boundaries are used. Worldmap_southern.svg: Polar / orthographic projection of the southern hemisphere, from Natural Earth Data Worldmap_northern.svg: Polar / orthographic projection of the northern hemisphere, from Natural Earth Data PNG is a raster graphics format. PNG has advantages over SVG including smaller filesize (due to less-than-optimal server-side SVG-to-raster conversion), more widely supported and often easier and faster to make simple changes to things such as borders. These are azimuthal orthographic projections of the Earth from four sides plus the poles. 726×726 pixels, aliased. XCFs have separate layers for water, land, coastlines, political borders, political borders over water (not shown in PNGs), and latitude & longitude gridlines (not shown in PNGs). Libre Map Project boundary maps – Includes United States boundary maps for all 50 states and territories including state, county, and county subdivision maps in SVG format. All maps released under the BY-SA Creative Commons license. This is a web interface, © 1996 – 2004 Martin Weinelt, generating maps using GMT (The Generic Mapping Tools), from public domain vector data. The resulting maps should be in the public domain. These maps show elevation and main rivers, but no modern boundaries. They are intended for use in archaeological/historical contexts (Kurgan, Ancient Orient, Neolithic Europe, etc.) Source.