Learn how to create an intricate origami Menger Sponge, a three-dimensional fractal, in this detailed 22-minute tutorial. Master the art of folding a 5x5 grid, pre-creasing techniques, and assembling cube units to construct this complex geometric structure. Follow step-by-step instructions to build the level 1 sponge using 20 sheets of 12cm x 12cm origami paper, and discover how to scale up to higher levels. Gain insights into the exponential growth of units required for each level and explore the mathematical principles behind this fascinating origami project. Perfect for origami enthusiasts looking to challenge their skills and create a visually stunning piece of paper art.