The goofy things you find playing around in google. I was looking at a series of industrial hand wheels when I found some very large sized wheels. Actually it was a tank built in 1914. You can see a man standing on top of it to the left and a man on the ground. This beast weighed 40 tons, it's wheels were 9 meters in diameter and oddly enough it got stuck on a small ditch on its first run. It was too big a target for the enemy and it was melted down by 1916.