I was rewatching The Firebending Masters when I noticed this pillar (image attached). I am not very familiar with ancient chinese text, but the bottom of this looked like it might be 古, the character for old. It very well may be gibberish symbols, but I wanted to post this in case anybody here is well versed in histoical Chinese and thinks these are characters that were missed in the original article.
Unfortunately I've had to delete the image as we only allow images to be uploaded for use in articles.
As for your question, I think it looks much more like 支, not 古. I doubt that it is gibberish symbols – just looking at the top character, it is more likely to be classical Chinese, which I cannot read.
Do you know what people have filled in translations on this page in the past? I think it would be nice to get this translation added, but I can't recognize the top character. Also, that photo could be used in the article in theory, so idt you have to delete it...