It might interest HN readers that Donald Knuth (of The Art of Computer Programming fame, among others) enjoys taking photos of yellow, diamond-shaped road signs

It might interest HN readers that Donald Knuth (of The Art of Computer Programming fame, among others) enjoys taking photos of yellow, diamond-shaped road signs. He has quite a collection! https://cs.stanford.edu/~knuth/diamondsigns/list.html https://cs.stanford.edu/~knuth/diamondsigns/list.html