Buried Egyptian Ruins Near Siwa, Egypt?

Scrolling thru Egypt on Google Maps, I found this lovely little oasis about 10-15 km south-southwest of Siwa, Egypt, that looks as tho it may be of an ancient buried city.

So, my curiosity piqued, and I tried finding some information on it, and about best I could come up with is a few stories about the possibility of Alexander the Great’s tomb being located somewhere in buried ruins near Siwa.