These are the bronze doors of St. John Lateran, they're over 2000 years old and were the doors of the Roman Curia before they were brought to the Church. Think, Julius Caesar walked through them. Ave.
Reflect on that, punters.
SPQR,
LSP
PS. And note how much better their craftsmanship was than ours today, devolution anyone? While you're at it, look at those brazen doors and ask, "Did the Romans mean business?" You better believe they did.