Programmers decided that they needed a pace to send geocoordinates that were bad so they decided to send it to where the Prime Meridian crosses the Equator, i.e. 0 Lat and 0 Long.
Some folks decided to create the fictional country of Null Island, complete with its own website, which resulted in some people thinking it was a real place; including a tourist agency that wanted to arrange tours.
The full story is at http://www.wsj.com/articles/if-you-cant-follow-directions-youll-end-up-on-null-island-1468422251.
Note: Not sure what caused all the hate towards my obviously poor attempt at some humor on Friday but I edited it to a simple description. If I offended you I apologize,