The Viaduct is a photo taken from above Conisbrough Castle
Umm, yes. It’s Conisbrough Viaduct. Your title says “unknown” so I thought I’d help you identify it by supplying the link to it on Drone Scene.
Many Thanks, I was visiting Grimsby to look after my mum and dads grave and Called there on way back home to Pontypridd in South Wales, I thought it was very impressive, cheers Len