the route is lined with thousands of people. >> it was a carnival in the sun, a festival on the theme of red, white, and blue. a huge cheerful crowd that has waited so long and patiently. roars and waves at their welcome. >> i was the main anchor for the bbc's coverage of the wedding. one of our cameras is just outside the main gate to clarence house as you can see behind her there. that means we're going to get our very first glimpse of not just lady diana but the best kep secret of the wedding, the wedding dress. >> went up the stairs and all the bridesmaids were there. diana was there. it was such a wonderful atmosphere. everybody was skmmiling and hap. it was kind of surreal in a way, because you could hear the people outside and the crowds.