There’s a thread going round promoting visits to Morocco’s Roman ruins. Hardly surprising, Syria is out of bounds, Libya inaccessible, Tunisia possible, and Algeria not so, meaning that the Roman history geek wanting some warm climate ruins to visit in the northern summer is limited.
There is of course Turkey, though of course they tend to be hellenistic, and also Jordan and Lebanon. Otherwise you are limited though at a pinch there’s Albania.
J and I went there about ten years ago and Volubilis was a wonderful sprawling weed grown ruin of a place, quiet and comparatively untouched where you could wander more or less at will, and as impressive as some of the sites in Turkey – definitely worth a visit, and not one you’ll come away from feeling short changed …