Hundreds of years old. Somewhere around 750, you imagine. Older than  the city, or anyone living inside it. Even what it's depicting is foreign to you. If the date is correct, it comes from a time completely different from everything we know now. Back when the skies were ours, before the fall.
You ponder that the artist could never have lived to the fall, however. The event marker was likely placed by someone else.
...For a moment, you're lost in the images swimming through your head of a time long since past.












