God was a boso(n)? That's an unnecessary large door. (It's not a NASA rocket hanger)
By the way that door has 13 squares from bottom to top. And at the bottom red head mage girlfriend is next to it, and she's as tall as one square.
And there are 3 windows of 3 storeys visible. But the lowest isn't the bottom most one. The ground level one is hidden by trees.
That makes 4 storeys. To the middle … ~⅔ of the door.