everything's happy underground

Bulla Regia isn't far from Le Kef; it's a Roman city notable for its underground villas. They're not completely underground, but they have underground courtyards with bedrooms leading off of them: basically a standard atrium layout, moved ten feet lower. They're warm in the winter and cool in the summer; I could feel the temperature drop by a few degrees as I went down into them.

This is from the House of the Hunt. Check out the cool hexagons:



This is another site that was pretty much empty except, oddly, for a couple making out in one of the houses.