Visualize a futuristic cityscape with towering skyscrapers and neon lights, where a giant jigsaw puzzle piece dominates the center, with smaller puzzle pieces floating in mid-air, representing the city's complex infrastructure and the puzzle's ability to fit together perfectly.

Design an illustration of the Mona Lisa, the world's most famous painting, with her enigmatic smile replaced by a jigsaw puzzle piece, surrounded by torn paper scraps and scattered puzzle pieces, symbolizing the puzzle's ability to challenge and intrigue.

Create an image of a Rubik's Cube, a 3D puzzle toy that has become an iconic symbol of intelligence and problem-solving, with the cube's colors and patterns blending together in a mesmerizing swirl, set against a dark blue background to emphasize its complexity.