LOL! I have to admit that I made an error of 10 for the hight of the tower. I've checked that lately again and saw that Kristin's hight is only 168 units. The towers hight is 51k units. So 1 unit = 1 cm. Wich means the tower was 510 meters tall. But even a 51 m building from balsa wood couldn't be stable enough. Balsa is light but not weightless. You would need tons of balsa wood for this project. It can probably carry it's own wight if it's construction is good enough. But the wind power of a small breeze would blow it away.