Source google image: https://rukminim1.flixcart.com/image/832/832/learning-toy/b/k/g/4d-cityscape-sydney-time-puzzle-original-imaemphwy9utypxx.jpeg?q=70
Puzzle 4d cityscape
Source google image: https://rukminim1.flixcart.com/image/832/832/learning-toy/b/k/g/4d-cityscape-sydney-time-puzzle-original-imaemphwy9utypxx.jpeg?q=70