China’s monumental engineering endeavors, ranging from underground laboratories to extensive canals and sea-crossing bridges and tunnels have reinforced the country’s scientific exploration and infrastructural connectivity. With the commencement of its second phase in December 2023, China Jinping Underground Laboratory, the world’s deepest and largest underground lab, lying 2.4 kilometers beneath the Earth’s surface inside Mount Jinping, Sichuan Province, has enabled the search for dark matter. Despite facing daunting challenges such as rockslides and floods, the project has blazed a trail in cooperation with engineering and frontier physics, as well as life sciences. Additionally, Pinglu Canal, spanning 134 kilometers from inland Guangxi Zhuang Autonomous Region to the region’s Beibu Gulf coast, and the 24-kilometer Shenzhen-Zhongshan Link which integrates bridges and tunnels with a new concrete filling approach, will save transportation costs enormously and boost regional integration.