I am interested to know if there is any place on Earth that is permanently a desert (except Antarctica). By permanent I do not mean to be the physical meaning of forever. It means the place has to be at least staying million of years as a desert and had survived at least one major climate change period. Precipitation is probably the most important factor to determine if a place would be a desert.
So, the question could be focused on a particular location which receive little precipitation despite how the overall global climate has changed (of course I still welcome discussion outside of the precipitation pattern).