Went to a mass today at the St. Peter's, and guess what's above the high altar: Sigma Kappa letters! Of course they were part of a Greek inscription, but just funny to see they are written at one of the holiest place on earth!
Do you see it? On the right side, it is Sigma - Upsilon - Beta - Omicron - Sigma - Kappa - etc. Not so visible, but they are upthere, you can see clearly the Sigma, and the Kappa is rather behind the pilaster.
Just a thought to share with the group