One (small) past thread:

Aerial Photo Explorer - https://news.ycombinator.com/item?id=33305759 - Oct 2022 (2 comments)

Historic England is the organisation name, so the title should probably be

Historic England Aerial Photo Explorer.

Amazing! Makes me a bit sad to see all those beautiful buildings destroyed to make way for skyscrapers and bland office buildings...

There's a sizeable cluster north of London on there - trying to work out why, I suspect it may be the proximity to Bedford Aerodrome and the fact that it's a very farming centered area and aerial photos can be very useful to farmers.