Dreams about buildings

I am substantially more likely to remember the shape of buildings than faces, names or events. I don't know why this is- maybe it's because they're often so BIG. This is doubly so for dreams...

I have very detailed memories of buildings in dreams from a really long time ago. Like, even though i have forgotten the context of the actual dream, I recall the great big white marble cube building, the tall and porous building made out of grass, and the home that was one giant room, but that room was made up of a field... that one for some reason reaaallly sticks out in my mind. It had a roof, an unusually shallow roof for a building of this size (it as big or bigger than any warehouse I've been in), but it had a glass roof and it was dreary out. And the field wasn't so much a field as... a grassy depression. There was one tree in the corner. It was as if winter was just coming to this room.