I have a very faint (probably from the 1960s) memory of reading a DC comic and there was Superman flying past an entire alien planet that looked just like Superman's head.

I got zero memory of the plot or anything at all, just that one image....I was a young kid giving it "Wow!"

Update:- I've thought (headache!) hard about this one and I 'think' it might have been a planet of alien blind people that he had saved from some deadly peril, as he went to fly off a young blind girl asked to feel his face, they then spent years altering their world in gratitude. He was very surprised when he returned to check up on them.