There are no cities on the island of Anglesey. Its two largest towns are Llangefni and Holyhead. There is only one city in North Wales, which is Bangor.
Greater Mexico City has hundreds of towns now engulfed by the urban conglomerate. Some of them include Coyoacan, Ciudad Nezahualcoyotl, Huixquilucan, Iztacalco, Tlahuac, Tulyehualco or Chimalhuacan.