Also in the '80s and early '90s - and some grown up kids also in the '10s of the new century

Usually I don't use lego bricks for scenerey, but some times when we play a bigger than usual scenario we throw in some legos to make more walls and other scenery. That material is great, pity it comes in silly colours (blue or bright red walls are not that realistic...). Once we played a Berlin 45 scenario, and we built a blue & red lego reichstag, not much realistic but real fun!