Three are similarities, but, I think the description of "Babylon" fits better to New York or Rome/Vatican.What about London? I think of Babylon as a very small version of London.
He cried with a mighty voice, saying, "Fallen, fallen is Babylon the great, and she has become a habitation of demons, a prison of every unclean spirit, and a prison of every unclean and hateful bird! For all the nations have drunk of the wine of the wrath of her sexual immorality, the kings of the earth committed sexual immorality with her, and the merchants of the earth grew rich from the abundance of her luxury." I heard another voice from heaven, saying, "Come out of her, my people, that you have no participation in her sins, and that you don't receive of her plagues, for her sins have reached to the sky, and God has remembered her iniquities. Return to her just as she returned, and repay her double as she did, and according to her works. In the cup which she mixed, mix to her double. However much she glorified herself, and grew wanton, so much give her of torment and mourning. For she says in her heart, 'I sit a queen, and am no widow, and will in no way see mourning.' Therefore in one day her plagues will come: death, mourning, and famine; and she will be utterly burned with fire; for the Lord God who has judged her is strong. The kings of the earth, who committed sexual immorality and lived wantonly with her, will weep and wail over her, when they look at the smoke of her burning, standing far away for the fear of her torment, saying, 'Woe, woe, the great city, Babylon, the strong city! For your judgment has come in one hour.' The merchants of the earth weep and mourn over her, for no one buys their merchandise any more;
Rev. 18:2-11
I think that bolded fits well to New York, which is the place of UN headquarter. But, this doesn't necessary mean it is the right understanding of the scripture. As the following shows, it probably should be understood spiritually. For example many waters are peoples and nations. And mountains are kings. But, that could still fit to UN and New York. I think one should be careful with this and not make hasty conclusions. What I say in this is not necessary correct, but I don't think these fit to Jerusalem or Israel although I think Israel should be better.
One of the seven angels who had the seven bowls came and spoke with me, saying, "Come here. I will show you the judgment of the great prostitute who sits on many waters, with whom the kings of the earth committed sexual immorality, and those who dwell in the earth were made drunken with the wine of her sexual immorality."...
...And on her forehead a name was written, "MYSTERY, BABYLON THE GREAT, THE MOTHER OF THE PROSTITUTES AND OF THE ABOMINATIONS OF THE EARTH." I saw the woman drunken with the blood of the saints, and with the blood of the martyrs of Jesus. When I saw her, I wondered with great amazement. The angel said to me, "Why do you wonder? I will tell you the mystery of the woman, and of the beast that carries her, which has the seven heads and the ten horns. The beast that you saw was, and is not; and is about to come up out of the abyss and to go into destruction. Those who dwell on the earth and whose names have not been written in the book of life from the foundation of the world will marvel when they see that the beast was, and is not, and shall be present.{TR reads "yet is" instead of "shall be present"} Here is the mind that has wisdom. The seven heads are seven mountains, on which the woman sits. They are seven kings. Five have fallen, the one is, the other has not yet come. When he comes, he must continue a little while. The beast that was, and is not, is himself also an eighth, and is of the seven; and he goes to destruction. The ten horns that you saw are ten kings who have received no kingdom as yet, but they receive authority as kings, with the beast, for one hour. These have one mind, and they give their power and authority to the beast. These will war against the Lamb, and the Lamb will overcome them, for he is Lord of lords, and King of kings. They also will overcome who are with him, called and chosen and faithful." He said to me, "The waters which you saw, where the prostitute sits, are peoples, multitudes, nations, and languages. The ten horns which you saw, and the beast, these will hate the prostitute, and will make her desolate, and will make her naked, and will eat her flesh, and will burn her utterly with fire. For God has put in their hearts to do what he has in mind, and to be of one mind, and to give their kingdom to the beast, until the words of God should be accomplished. The woman whom you saw is the great city, which reigns over the kings of the earth."
Rev. 17:1-18