Notre Dame is covered with fascinating sculptures. One of the most interesting to me is the one of Saint Denis. He was once the bishop of Paris and was beheaded up on Montmartre which means Mountain of Matryrs. Then, according to legend, he picked up his head and preaching all the way, walked down hill where he finally stopped two miles later which is the location of the Saint Denis Basilica which is well worth a visit.
You can find a sculpture of him on the left side of the left front door of Notre Dame. There are two angels on either side of him saying, “Oh, my! Would you look at that!” Look at the line of little sculptures to the right of the angel on the right-they are signs of the zodiac. Apparantly, it was okay back then to put them on a church.