In general, Saudi Arabia is ugly. There is no color, everything is covered in dust. Nothing grows without irrigation. Trash is everywhere. Unfinished construction abounds. Compared to the rest of the city, the DQ is actually, sort of, pretty. The crown jewel of the Diplomatic Quarter is the Wadi. The Wadi is a 5 mile path around the DQ. It mostly clings to the edge of the cliffsides that form the primary border of the DQ.
It is a great place to go running. The last few mornings, I have made my way out at sunrise to go running on the path. The temperature has been perfect for a jog - a little chilly, but not cold.