Game of Thrones author George R. R. Martin's theories on pizza

Author of Game of Thrones, George R. R. Martin's shares his theories on New York City pizza and the best places where you might find Daenerys Targaryen, John Snow or anyone from the Lannister family.  Just published is a new book by the author, Fire & Blood, 300 years before a Game of Thrones (A Targaryen History).

Do note that the true authority on pizza is Daniel Young who compiled  a world-wide compilation of Where to Eat Pizza.