westminster abbey and hundreds of thousands of people lined the streets, outside of the -- to celebrate and that was particularly emotional. see all the e brits, and how excited they were, estimated 2 billion people worldwide watched the ceremony, one of them was amy kellogg and she is live in london, and to tell us about the highlights, tell us everything you saw, amy. >> reporter: well, alisyn i think the highlight really was, when kate middleton, now the duchess of cambridge stepped out of the rolls-royce and revealed her sarah burton for alexander mcqueen dress for all the world to see with the lace bodice which is symbolically woven with flowers and plants from the four different regions of the u.k., and, then, certainly the look on prince william's face when he be hell his bride, in her gown, for the very first time. there really was a look of love in both of their eyes, and then, of course, very moving, for very many people, the wedding vows, themselves, let's take a little