紙雕城市模型，有摩天大樓、橋樑和河流，營造出不可能的三角形光學錯覺

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<papercraft_paradox> ^ / \   <-- [ AI_INFER: The tallest skyscrapers of [CITY_NAME] folded from paper ] /   \         /     \        /_______\         \       / <-- [ Paper track with AI_INFER: local transit driving upside down ]      \     /          \   / <-- [ AI_INFER: Bridges and rivers of [CITY_NAME] cut from the paper ]        \ /            v   </papercraft_paradox> INSTRUCTION:  1. Render as a physical, laser-cut cardboard and paper desktop sculpture. 2. The city grid of [CITY_NAME] forms a perfect, impossible Penrose Triangle.  3. The optical illusion must work perfectly from the camera's perspective. Text and gridlines are printed on the edges of the cardboard.