Man, that's a lot of frequent flyer miles! Canadian transportation planner Michael Markieta who works at engineering firm Arup in Toronto as a Geographic Information Systems (GIS) consultant, crunched the data of more than 58,000 global flight paths and visualized them in these fantastic images: Link
(L) Flight paths across Africa. The shape of the continent is immediately recognizable from the coastal cities. (R) Flight paths across Europe. The busiest airport in Europe is Frankfurt International in Germany, which has 235 direct flights.