Is there like a Holy Nuclear missile silo for when Catholicism tries to take over the world or is there like a tunnel to Middle earth where the Pope fights Sauron? What is hidden in Vatican city?
The answer given by Hall of Skulls 8 is so much better than my answer.
A 10-foot plush Spongebob Squarepants.
What the Vatican hides would prove they are not doing as Jesus asked. Teach people about the KINGDOM...God's new governmental system, controlled by Jesus from heaven, and bringing the earth back to a paradise as his Father, Jehovah God, originally intended. When this Kingdom is completed, Jesus will hand the finished product BACK to his Father... (1 Corinthians 15:24) Next, the end, when he hands over the kingdom to his God and Father, when he has brought to nothing all government and all authority and power. Jesus has his father's qualities, but he is not God himself.
Other than every book the Catholic Church has ever banned or reviewed? Dead Popes and Cardinals. The odd Saint or other True Believer. Oh, and if you want to believe the Conspiracy Theorists, the treasury of the Templars, and the Wealth of Nations...
Oh shoot - that's where we evil Catholics hide all the Protestants that we're torturing....haven't you heard? Oh, and it's true - we do hide the best toilet paper too.
