Backlit statue of Christ handing the keys to Peter, in the side chapel where the altar contains a piece of the wood from the table used by Peter to celebrate Mass (the wood matches the wood that is in the St. John Lateran basilica papal altar). Peter is thought to have stayed in the house of Pudens, senator of Rome, while he was here in Rome, and it was Puden's house that was used as a house-church and eventually developed into the church we see here today.