Countries of the world that have subways.

This map includes electrified rapid transit train systems around the world. In some parts of the world, metro systems are called subways, U-Bahn or subways.How do you make a bunch of statistics more interesting to read? Geographers and cartographers everywhere agree: you turn it into a map!

Thematic maps are a way of visualizing spatial data and can therefore be powerful tools for transmitting information. We'll highlight the characteristics of thematic maps, as well as the major types of thematic maps you're likely to come across and the symbols that go with them. As you read this explanation, think about the importance of the visual representation of information.