What is Prime Meridian?
[[File:Primemeridian.jpg|180px|thumb|right|Location of the Prime Meridian]] [[File:Greenwich - Royal Observatory - View NW on Prime Meridian of the World.jpg|thumb|Visitors at Greenwich looking at the mark on the ground which represents the prime Meridian]] The '''Prime Meridian''' is the [[meridian]] (line of [[longitude]]) that goes through the [[Royal Observatory, Greenwich]] in [[London]] it is also known as the International Meridian or Greenwich Meridian. Other longitudes are given as east or west of the Prime Meridian. Lines like this are not actually lines on the ground, but are ways of saying where a place is on the globe. The ones that run [[horizontal]] (east to west) are called [[latitude]]. They tell us how far a location is from the [[equator]]. The other lines are [[vertical]] and are known as longitudes. Such is the Meridian's fame that each year, hundreds of thousands of visitors from all around the world make their way to the Observatory to stand astride the Line. But its position is marked in hundreds of other places too. On its path from pole to pole, the Meridian passes through [[England]], [[France]], [[Spain]], [[Algeria]], [[Mali]], [[Burkina Faso]], Togo, Ghana and [[Antarctica]]. == Related pages == * [[Meridian]] * [[International Date Line]] {{science-stub}} [[Category:Lines of longitude]]