What is your tallest tower in the World of Goo corporation.
I only have 136 goo balls as I have the free trial version so I can only access chapter 1, but I managed to get to 22.5m which was 13th in the world (not sure whether that is only current users or all time, I suspect it means whoever is online at the time)
I then ruined messed that up and unbalanced it, but I managed to undo the top few goo balls and save the main part of the tower, and now have a stable tower at 22.3m (22nd in the world I think) although I have no more balls to add, especially considering I have pulled out a number of holes in the middle of my tower just to get this high.