I see the sodium light as much more orange -- although maybe I'm mis-identifying the gas involved. If one's urine is the color of the lights I'm thinking of, a doctor is needed.

Neat that you had a good conversation with the Archivist!
I've been to St. Paul's, and summoned my courage to go to the walkway around the inside of the dome. There's a nuWho fight that happens there, which hadn't happened yet at the time I was there.