Google has put petabytes of satellite data from the last 30+ years into Google Earth, so you can now go back in time. I think this may be a great help to those looking to see what the prototype of their layout may have looked like 30 years ago. The article is at this link: https://arstechnica.com/gadgets/2021/04/google-earth-is-now-a-3d-time-machine/