Check out http://www.tourdafrique.com/; 100 days of bicycle race from the North to the Southern tip of Africa.

"On Saturday, the fourth annual "Tour d'Afrique" is set to get underway, an 11,900-kilometer (7,438-mile) bike race from the pyramids in Egypt all the way down to the Cape of Good Hope at the southern tip of the African continent. Of course, if you don't want to race, you can just ride along for the fun (and excruciating pain) of it -- for the small fee of $8,800 per person. Lion repellent not included. A bit more detail on the race's 99 stages can be found here." (Spiegel)


(Kudos to Rajiv for the link)