A series of lines crisscrosses the world's maps and globes. The 180 horizontal latitude lines, and 360 vertical lines that mark east and west longitude, are vital to navigators.

To pinpoint your position on a map of the world you need to work out your co-ordinates, known as latitude and longitude. Latitude is your position north or south of the Equator. Lines, or ...

The horizontal lines on the map are called latitudes. These lines also called parallels as it run parallel and are located at an equal distance from each other. Every degree of latitude is nearly 69 ...