Book excerpt: Written by a Vatican insider and accomplished church historian, this book is a unique behind-the-scenes look at the world's smallest nation and the spiritual center of the Catholic Church. Produced with the full cooperation of the Vatican, this is a beautifully illustrated insiders guide into the 2,000-year-long history of the Vatican and papal influence, daily life and governance of the world's largest religious body, and the art collections and other priceless treasures rarely seen by the public. In addition to a unique photographic tour, the book includes personal interviews with various Vatican employees and insiders who make their home there, from a Swiss Guard to a singer in the Sistine Chapel choir. This book is an unparalleled look into life inside the Holy City.