So yesterday I received my invitation for the new Google Maps. I like it a lot. I like it so much that I haven't done much else with my life over the past 36 hours or so. Don't worry though, I used to do the same kind of thing with Google Earth.
Anyhow, back to my game. I want to call it, "Let's Go for a Walk". Basically we just see who can find the longest walking route according to Google. It's actually tougher than you may think, since some queries will yield no results for walking routes.
The best I've done is 17,144 miles (27,591 km) from Taman Nasional Kutai, Bontang, Indonesia to Cape Town, South Africa. According to Google, that hike would take 5,215 hours or just under 218 days.
I'm sure you can do better.