Fun fact: you can see they "No photography" signs on GCHQ's gates from Google Street View, but super low resolution, making them unreadable. They must have made a deal: Google gives its Street View data with uncensored plate numbers/faces, and GCGQ allows them to film in front of their building at low resolution! The sign actually shows up on their first Instagram post when they created one in 2018 www.gchq.gov.uk/news/gchq-joins-instagram | inews.co.uk/news/uk/gchq-instagram-puzzles-photography-hobbies-216444 Just passing in front of the damn place with Google Maps on must increase your "interest score"!