due to the curvature of the Earth a really long building can't have walls that are both parallel and level.

https://lemmy.world/post/1042931

due to the curvature of the Earth a really long building can't have walls that are both parallel and level. - Lemmy.world

I guess you could put it on ever higher stilts to satisfy the parallel and level thing.
Not level, after a while the vector of gravity will not be normal to the floor.