Null Island

• Null Island is an imaginary location for the intersection between the Prime Meridian and the Equator (0°N 0°E).
• It occurs at zero degrees latitude and zero degrees longitude, south of Ghana in the Gulf of Guinea. A weather buoy named ‘Soul buoy’ is moored at the coordinates.

Roman Prime Meridian

• In Ptolemy’s Geographia (c.150 CE), the Roman Prime Meridian or Zero Degree Longitude, was centred on Mount Teide in Tenerife, at 16°38′22″W.