angel gabriel was sent to god to tell mary, a virgin, some would have a son with the holly spirit. we visited the site devoted to mary. >> just a few blocks away is st. gabrielle's churchy the greek orthodox say it happened. >> and below this is mary's well, the traditional site of nazareth's spring, a place where mary and young jesus would have drawn water. >> i don't think we need to say it was here or there. to be able to affirm something beautiful and wonderful has entered our world. >> why is christmas angels and not only mary's life but joseph as well? >> in the first century, jews believed that the cosmos was filled with demons and angels and the power of god. now, this is a fact of history. not that angels appeared, but