Looking for outdoor jungle gym
I'm interesting in working out more outside, so I'd like to install some kind of jungle gym in my backyard. I'm looking for something simple, like something you find in a park or on the streets of China (those who have been there probably know what I'm referring to). My only requirement is that it be long-lasting, and enable me to work on pullups. Ideally it would just consist of two metal bars coming out of the ground with a bar connecting them at the top.
I'm wondering if you guys had any idea where I could buy such a thing. I'm pretty sure it exists, but I have no idea where to start looking.