Most of Jordan is desert. The Wadi Rum area is actually quite famous and has been used as the setting for many movies, including Star Wars and Martian. This was really the first time I have traveled in a desert area and I thoroughly enjoyed the stark scenery.
There are also a lot of interesting mathematical patterns in the desert. The ripples in the sand, the patterns of dried hard pan and shapes of the shifting dunes all have relatively simple mathematical models.
I was very fortunate to be able to spend time with some Bedouins who shared some basic understanding of life in the desert. One thing I learned is that you will be more comfortable if you are well covered, although it seems counterintuitive. Basically you don't want anything exposed to the sun. You might think that wearing long pants, sleeves and head covering would be stifling, but because the desert is so dry your perspiration evaporates immediately. If you do it right you can be quite comfortable. Of course you want to stay hydrated and be in shade whenever you can. Bedouins drink a lot of tea and often travel at night if there is a moon, and stay under a tent during the day. The tents can be surprisingly comfortable and cool. Bedouins are also known for their friendliness and hospitality to strangers.