Thank you for the link, normally I just "upvote" a good comment, but here, I really recommend others to look at the Wikipedia page, especially the first "View of Shibam" in the gallery at the bottom. I would have never though it was possible to build that high with mud bricks.

I recommend checking out the ruins that litter Northern Arizona as well then.

The indigenous civilization there (before it collapsed in the 1200s and its survivors migrated south and became the Aztec) built multi-storied pueblos, a number of which were even built into the rock.

If you're ever out around Coconico and Flagstaff, you're in for an absolute treat.