After reading through that “Dangerous Book for Boys”, of course I had to build a treehouse for my kids.  The design on 1 tree is pretty good, so I went ahead with it (keep in mind it will cost you a few hundred in materials, and a few weekends)  Below are some of the pics!  Its coming along real well.  Its about 7 feet high on the close side, and about 13 or more on the far side, as the ground slope downward.  It’s already been infested, as you can see from the second picture!