I have been staying at what can literally be called a manmade oasis. It's the Quechan Indian Tribe Casino and Resort Hotel, also known as "The Q," in Winterhaven, California, directly across the border (Colorado, River) from Yuma, Arizona.
The three photos show the architecture of the hotel and casino (there is also a well equipped conference and function center, too). It gives me the general impression of a Spanish/Moorish style. The property is pretty new, probably only a few years old.
As you can see from the photos, it literally is in the middle of a pretty desolate Sonoran desert region about 1 1/2 miles from the Mexican border and the small town of Los Algodones. Thousands of U.S. and Canadian visitors go to Algodones (including yours truly) to high quality, low cost dental work. There are in excess of 250 dentists in this little town. I'm very pleased with the work I had done and even happier with what it cost me.
Inside "The Q" is a very large and well equipped, modern casino, nice restaurants, a night club and a beautiful pool complex. And it's all located in the middle of the desert. It has become a ghost town through the middle of April and will likely continue like this until sometime in later October when the "snowbirds" will return for the winter.