looks to me like right under the black box, which has jagged edges on the bottom of it, are city buildings.
I had the same impression.
looks to me like right under the black box, which has jagged edges on the bottom of it, are city buildings. Here's a clearer picture of the Kabba with the "city buildings" at its base:
And as for the "English writing", here's a photo from the same angle (although not same elevation) as the image in question:
Same gold bands, same location.