When the tracks on the tracklog overview page are combined, interesting data can be gathered. When viewing these combined tracklog files, you get a kind of density map of the places i've been cycle racing to. This map is cool, because it gives me insight into how often i have visited places in the past and the places i have yet to explore.

When viewing the tracks via Google Maps, the tracks are simplified to keep rendering in the browser possible.

You can view the density map via Google Maps or via Google Earth (requires Google Earth):

Year	Maps	Google
all years
2005
2006
2007
2008
2009
2010
2011