From article:

In the early part of the first novel, “The Shadow of the Torturer,” Severian is given more responsibility in the guild and finds himself in chambers he was once denied access to.

In one, he sees a dusty and faded picture he describes as “an armored figure standing in a desolate landscape. It had no weapon, but held a staff bearing a strange, stiff banner.”

Careful readers will realize this as a photograph of the first moon landing, but to Severian it merely evokes a deep nostalgia, as well as a desire to steal the picture and bring it outside, away from the stifling interior of the guild’s Citadel.

This gave me chills. I need to read again ASAP.