In reply to ashuk:
I have a 'climbing frame' in my garden, it is a 'kids' swing frame made by TP Toys. It's made from 50mm dia tubes, very solid for pull ups etc. I have attached logs to it for ice axe training, pretty fun stuff although the neighbours think its weird. It's also good for practicing rigging of things like pulley systems etc. I did plan to have other things hanging from it, different holds/a campus board but I never really felt the need in the end.
The frame is quite expensive new but I managed to get one from gumtree for £20 so it was a no brainer.