What's the difference between a topographic map and a regular map?

• Topographic maps show a three-dimensional landscape, regular maps don't.
  Unlike regular maps, topographic maps show three-dimensional landscape on a two-dimensional surface, using measurements such as contours and elevation to indicate the features of the terrain. A regular will just show where various places are, along with any existing boundaries.
• Topographic maps are heavy, regular maps are light.
  Unlike regular maps, topographic maps show three-dimensional landscape on a two-dimensional surface, using measurements such as contours and elevation to indicate the features of the terrain. A regular will just show where various places are, along with any existing boundaries.
• Topographic maps are expensive, regular maps are cheap.
  Unlike regular maps, topographic maps show three-dimensional landscape on a two-dimensional surface, using measurements such as contours and elevation to indicate the features of the terrain. A regular will just show where various places are, along with any existing boundaries.