Google earth historical imagery has imagery from 1945??? Here what you are seeing is London Heathrow Airport in 1945, the runway layout has quite a few triangles (this was normal for airports at the time). You can also see the former London Croydon airport if you go on Google earth. It’s black and white!
*this is not fake, if you go to London in Google earth historical imagery, you will see some black and white photos if you set the date to 1945. The airport seems to be a military airbase, with 5-6 runways or 4.