"So he 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. And 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: And upon her forehead was a name written, MYSTERY, BABYLON THE GREAT, THE MOTHER OF HARLOTS AND ABOMINATIONS OF THE EARTH." (Revelation 17:3-5)
One of the signs in the verses above also describes the "Woman Riding The Beast". Here are photographs of that sign, and others.
An image which the European Union has chosen as one of it's symbols is the "Woman Riding The Beast". In 1984, the European Parliament issued a centenary stamp which contains that image.
The image of the "Woman Riding The Beast" also appears on a huge painting in the European Parliament building, and is a huge sculpture outside the European Union Council of Ministers Office, both located in Brussels, Belgium.