Time will tell whether Mystery Babylon, The Great, The Mother of Harlots and abominations of the Earth is located in Mecca in the wilderness (desert) as 2 books called The Beast And Babylon, and The Islamic Christ, indicate.
Or will Mystery Babylon in the wilderness be located in the Vatican City within Rome, Italy with the "wilderness" meaning a place of unbelief, lawlessness, sin, temptation and enticement. Time will also tell if the following anagrams reveal the city where she is located or not. Each anagram is followed by it's Bible verse below:
THE WILDERNESS ("Their lewdness" Rev. 17:3)
LEWDER SINS ("Wilderness" Rev. 17:3)
UNDER ROMAN CATHOLIC POPE, WE'LL DRAW ASTRAY, SNARE U ("The woman was arrayed in purple and scarlet colour." Rev. 17:4)
BE HARLOT BY GARMENT ("Mystery Babylon, the Great" Rev. 17:5). (Her garment is shown above in Rev. 17:4)
ROME HATH STOLE FORTH ("The Mother of Harlots" Rev. 17:5)
ROME, I ONE WHO ABANDONS FAITH ("And abominations of the earth." Rev. 17:5)