Soooo ermmm
Not to sound like a broken record but any chance some more northern geeks guides could get done? How about the Humber bridge? Or RAF Fylingdales (though it's not the same since the golf balls went). Or the manc's science museum (I'd also advise a brief detour to the pen museum too if your in the area). I'm sure there's other things too well worth a nosy that isn't in the south of the UK... Just saying.
Biting the hand that feeds IT
