CNN did a serious called 'Pope the most powerful man in the world'. I could be wrong on title but it will get you close. It was extremely well done and shows a lot of corruption in the position throughout time.

Mentioned times when they left St Peters to be in France and wouldn't move back because the King of France spoiled all the Archbishops with lavish meals and the church actually was tithing their offerings to the King of France. Crazy stuff.