New Orleans, and Louisiana for that matter, are dear to me. I finished Loyola School of Dentistry there and both of my parents were born and reared in NW Louisiana. All my childhood/teen memories of Christmas were at my grandmother's house in Many, Louisiana.
There are lots of beautiful homes with gorgeous sun rooms in New Orleans. The Garden District and the Lake Shore area have numerous sun room-homes and I am quite sure there are sun rooms in towns and cities most everywhere else.
I will ask Jim and Ursula, who both have large "glass enclosures" for their plants, what sort of glass they used.