STEM: Knowledge Is Power (LEGO 21355)
Author: lego_official
Building instructions for LEGO official set 21355 STEM: Knowledge Is Power. Series: LEGO® Ideas. Piece count: 879. Release year: 2025. Recommended age: 18+. 1 instruction manual in total.

- Brand
- LEGO
- Set number
- 21355
- Series
- Ideas
- Category
- Scenery
- Pieces
- 879
- Difficulty
- 5 / 5
- Released
- 2025
- Instruction pages
- 161 pages
About this set
This is LEGO Ideas 21355, a 879-piece scene set rated 5/5 for difficulty. The build centers on an open-book base whose pages carry a whole STEM tableau: a red ladder structure leans at the edge, a green tree grows upward, a colorful atom model is assembled from small spheres, and a microscope with a minifigure beside it anchors one side. A space shuttle, a spider, and a small building are placed around the pages, while books and a globe sit on the desk area. Red, green, blue, brown, white, yellow and orange parts are spread across the model, so sorting by color before you start saves time later. Build the book base and its hinge section first, then work through the upright elements such as the building, tree and ladder, and finish with the atom model, microscope, shuttle and spider so nothing fragile gets knocked loose while you move the model. With 879 pieces and that difficulty rating, it suits builders who already know the basics and want a science-themed display piece; newcomers should bag the colored decorative parts separately before beginning.
- Category: Scenery
- Difficulty: 5 / 5
- Parts: 879
- Brand: LEGO
- Set number: 21355
- Views: 6
- Likes: 0
Instruction pages









