Thom and James Elliot fell hard for Neapolitan pizza, and decided to buy a small van and drive through Italy, discovering and learning all they could about pizza making. The result is "Pizza" a new book about their adventures, which include a few cities in the U.S. They now have 14 locations of their Pizza Pilgrims brand in the U.K., where you can even get pizza making kits for home (if you live in London).