Soaring spires, towering arches, fascinatingly complex curves and angles! Build your foundation in architectural design with this fascinating STEM experiment kit that explores the engineering principle used in modern-day buildings. Through model building exercises, you play the role of architect and engineer as you piece together an array of models - from small, basic structural elements like trusses, arches and domes to giant complex model of real-world building. Try recreating some of the worlds most interesting buildings! With 20 guided mode builds, you can construct stadiums, skyscrapers, a ferris when, and more. Kit includes: 308 pieces 44 page full-color manual Direction for 26 experiments Intended for ages 8 and up. ⚠️WARNING: CHOKING HAZARD - Contains Small Parts. Long flexible rods - strangulation hazard. Not for children under 3 years.