Mystery Pix, Solved!

DorjePismo was right, the Mystery Picture was a Native American structure, or what’s left of one.
In fact it was probably a kiva, an underground ceremonial structure. At any rate, it was the largest room in the small, mesa-top pueblo.
I won’t say where we were, except that we were roughly in the Four Corners area. The reason I’m being so coy is that this particular pueblo is known only to a very few people, and has never been excavated. It’s very remote, perched on top of a mesa, and contains m...