https://www.theregister.co.uk/2020/01/27/birthplace_of_british_rocketry/

Geek's Guide to Britain It is difficult to trump the long-defunct Blue Streak missile development and test facility at RAF Spadeadam for a sense of historical ennui and lost opportunity. The sheer number and scale of the remains, their dilapidated nature and isolated location make it a place unique, depressing and awe-inspiring in equal measure.

But it would be wrong to assume that Spadeadam is the only remnant of Britain's post-war rocketry and missile projects worth visiting. Two other sites, the Rocket Propulsion Department of the Royal Aircraft Establishment at Westcott and the Saunders-Roe missile test facility at the High Downs on the Isle of Wight, are also worth a shufti.