040: Out on a limb

There are a lot of trees in my yard, but they've never been climbable, nor have I ever had a treehouse. I always envied whoever got to play in this one in Minneapolis:

both photos via Flickr

I wonder if one ever gets too old for treehouses.  If I ever had a home with enough land and the proper arrangement of trees, I suspect I'd want to do something like this:

Man, all three of these photos are making me dream of days when there aren't 12-foot snowdrifts in every parking lot in the area.  It'll only be two or three more months, right?