When they have to re-introduce the US $10,000 bill, I hope they keep it just like the 1928 design. It's a cool design, and much better than anything since.
https://en.wikipedia.org/wiki/File:US-$10000-FRN-1928-Fr-223...
https://en.wikipedia.org/wiki/File:US-$10000-FRN-1928-Fr-223...
I guess it’s all subjective, but I feel like it’s a missed opportunity to have more highly detailed “engraving” style art.
Based on absolutely no artistic expertise, I really like the framing of the front and back of the 50:
https://en.m.wikipedia.org/wiki/United_States_fifty-dollar_b...
EDIT: It seems there’s an alternate backing to the Salmon P Chase 10,000: https://en.m.wikipedia.org/wiki/Federal_Reserve_Note#/media/...