China operates some of the fastest metro systems in the world, with trains in cities like Guangzhou and Shenzhen running at ...
Explore the extreme metro system of Chongqing, China, which remarkably passes through a building. This video examines the record-breaking metro, detailing the planning process, construction methods, ...
MegaBuilds on MSN
I explored the world's most extreme metro system
Explore the extreme metro system of Chongqing, China, which remarkably passes through a building. This video examines the record-breaking metro, detailing the planning process, construction methods, ...
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