Thanks, I'd never seen Bishopsfield from the air before. On the ground, and especially inside, it all looked like a huge concrete monolith - unfortunately also made using high alumina concrete that didn't age well, so in my time there (late 70s) lots of different parts were being propped up with steel reinforcers. Since it still looks pretty intact, I guess they were able to fix the problem. It does look better from the air than on the ground, though 😉