In the midst of the COVID-19 pandemic, Chinese engineers responded to a surge of new COVID cases in Nangong by building a fully functioning 1,500-room hospital — in just 5 days. The stunning engineering achievement made international headlines, but for China, it was par for the course: Chinese builders and engineers are accustomed to finishing complex construction projects quickly and with remarkable precision. This video from Vision examines what's behind China's incredible feats of engineering.