Introduction to the Bird's Nest Project Highlights Exhibition: In the relevant areas on the first and fifth floors of the "Bird's Nest", the engineering technology highlights used in the construction of the "Bird's Nest" are displayed, including the multi-K node model of the Bird's Nest steel structure, The thick steel plate welding model used in the project, cross-layer inclined columns, "Bird's Nest" structural health detection system, Bird's Nest membrane structure, siphon drainage principle display, night scene lighting principle display, mobile lawn display and other venue construction science exhibitions.