A map projection is used to portray all or part of the round Earth on a flat surface.
- mac.usgs.gov (US Geological Survey)
| Cylindrical |
| Conic |
| Azimuthal |
| Mercator |
| Albers Equal-Area Conic |
| Oblique Aspect Orhtographic Projection |
| Unprojected Longitude and Latitude |
| Buckminster Fuller's Dymaxion |