LEGO 21355 The Evolution of STEM Building Set 879 Pieces

• Target now offers the Ideas Knowledge is Power STEM 21355 set, now $45.99 (originally $79.99).
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Editor's Pick: This is a brick-built book about the evolution of STEM (Science, Technology, Engineering, and Mathematics). Its base is shaped like an open book, while the top display model celebrates groundbreaking innovations in science, technology, engineering, and mathematics. The set is based on the winning entry of the LEGO IDEAS platform competition, expressing how the development of knowledge and scientific progress impact humanity.