The view from my hosptial ward wasn't exactly inspirational, but I did find the pipework running along the top of a nearby building interesting*. Some good joins in the yellow one for a start, and plenty of lagged black pipes too. There's a lot of detail in this shot, and it wouldn't be difficult to model. Start with some Kinghtwing pipes, and do the rest with bitws of wire wrapped in Rizla papers.
*You can deduce from this, how bored I was. Or maybe how boring I am.