The correct answer is that the iron support structure was visible
When you build something, the structural points such as pillars are usually not easily discernible to the untrained eye because they fit right there with the remaining walls and things like plaster or bricks. However, his Palace was built out of Glass so the iron supporting structures could easily be seen and it looked great.
I can say what I want with reason without getting arrested (well I’m black lol so umm yeah)
Place political, economic, and social limits on Black people in the South—control relations between White Southerners and newly freed slaves.