Bingley five-riseStandedge TunnelAnderton LiftPontcysyllte AqueductCaen Hill (is this on Rolt's list?)er... can't think of any more at the moment. We are fortunate to have "done" all the above.
Just thought... is Foxton Inclined Plane (even though derelict) another?
Your first five are right Halfie, but Foxton isn't on the list. So two more - one fairly obvious, one rather less so, I think. The less obvious one you have probably visited, if you have seen all of the firts five.
Bingley three-rise?Jan suggests the Falkirk Wheel, but that's a modern wonder (done that one too).
Oh - Jan's just Googled (she didn't know she wasn't supposed to!) and blurted out another one (which, again, we have done). If there's anyone else testing their brain cells I won't reveal it here. (And that was the obvious one, I should think.)
Barton Swing Aqueduct, possibly, but even if that is right, I have absolutely no idea about number 7!
Yes, Jan's suggestion was the Barton Swing Aqueduct. So what is no. 7?