While on your journey with Mario and Cappy, you are bound to find what are known as Hint Art in a number of different Kingdoms. These pieces of art will actually give you a hint on where to find a Power Moon or Power Moons within another Kingdom, detailing such by showing a basic picture of figures and where said Power Moon(s) will be. You can find a piece of Hint Art in Sand Kingdom, Lake Kingdom, Wooded, Metro Kingdom, Snow Kingdom, Seaside Kingdom, Luncheon Kingdom, Bowser's Kingdom, Moon Kingdom, Mushroom Kingdom, and The Dark Side.