EuroGraphics Castle and Sun by Paul Klee. Help your child gain an appreciation for fine art with this puzzle. Castle and Sun is an innovative painting by Swiss artist Paul Klee. The stylish images are created out of different geometric shapes and various shades of color. The lone sun shines in the ingeniously designed sky created by strong lines and structure. In addition, various rectangular sizes add depth to the abstract image. Strong high-quality puzzle pieces. Made from recycled board and printed with vegetable based ink. This superior quality puzzle will delight and educate all at the same time.