Rev.17:3So he (angel) carried me away in the spirit into the wilderness: and I saw a woman sit upon a scarlet coloured beast, full of names of blasphemy, having seven heads and ten horns.

4And the woman was arrayed in purple and scarlet colour, and decked with gold and precious stones and pearls, having a golden cup in her hand full of abominations and filthiness of her fornication:

5And upon her forehead was a name written, MYSTERY, BABYLON THE GREAT, THE MOTHER OF HARLOTS AND ABOMINATIONS OF THE EARTH.

9And here is the mind which hath wisdom. The seven heads are seven mountains, on which the woman sitteth.

(The woman is a church, in this case a wicked church found in Rome where the seven hilled city that rules the world is found.)