There is a tradition of harvesting rainwater in all human-inhabited drylands of the world where it rains (and in a great many wet areas that also experience dry seasons). I’ve been very lucky to have been able to travel to, and learn from, some of them.
Below are three images. One from Israel. One from Jordan. One from India. If you are traveling to any of these countries, I highly recommend you seek these sites out. They are all open to the public, and you can find them via the information I give in the captions of these and many more images in the Ancient Water Harvesting Art image gallery within my Water-Harvesting Images Gallery.