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 ...

Google Maps accepts latitude and longitude in any of the three common formats; use whichever one is most convenient: Degrees, minutes, and seconds (DMS): 34° 7' 8.904'' N 118° 18' 1.296'' W ...

Longitude is then a measure east or west of Greenwich and the meridian furthest from Greenwich is the International Date Line, exactly 180 degrees east or west.

These lines don’t, however, typically exist in real life. There isn’t a large line between the United States and Canada stretching from the Pacific Ocean, through the Great Lakes, and onto the ...

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 ...

To help locate where a place is in the world, people use imaginary lines called latitude and longitude. Find out more with this year 3/4 BBC Bitesize geography guide.