What happens inside the Vatican continues to compel millions of people, but few get to see it. Secret Access: The Vatican provides a revealing look at the inner workings of the Vatican, from the secret archives to the Swiss guards, as well as some of the treasures locked inside. Building on the success of The White House: Behind Closed Doors and Secret Access: Air Force One, this History special provides unique entry into one of the world's most elusive locations. See what is housed under the 110-acre site as an ongoing excavation of an ancient cemetery that the Vatican was built upon uncovers priceless artifacts, including the bones of St. Peter himself.