OpenStreetMap GPS bulk data map of Europe
a higher-resolution version of the GPS bulk data set from April. This map shows GPS trails uploaded to OpenStreetMap until 1st April 2012.
Each degree square is 64x64 pixels, and brighter areas denote a higher density of points. Data source
Unlike my previous attempts, it's possible to see specific flights and boat trips. Equirectangular/Plat Caree projection. View original size for full resolution.
Data (c) copyright OpenStreetMap and its contributors, CC-BY-SA