When I was a kid, we had jungle gyms. They were on the playground at school, at public parks, at campgrounds ... and I never met a jungle gym I didn't like. You see that little girl climbing on the top of the jungle gym below? That is exactly what I would have done on this climber. You rarely see these now, with playground safety concerns, but they sure were fun! Do you remember retro jungle gyms? Were you a playground daredevil who hung upside down on jungle gyms and stood up on swings? I'd…