It's endlessly fascinating how culture, religion and even language influence stylistic choices, even though Chess is a purely abstract game.

The obvious ones: in Western sets the king has a cross on top, and Islamic traditions only use abstract shapes. But I wonder if the "usual" designs aren't at least somewhat influenced by the English language specifically. Bishops have a stylized miter and Rooks are a tower with crenellations, but e.g. in Russian Bishop is "elephant" and Rook is "boat". Even in many other Western European languages "Bishop" as in the piece is not the same as bishop as in the religious office, e.g. "fou" in French, "alfil" in Spanish, "Laufer" in German.