In the 30 years of modern China's development, there is a project that has changed the speed of the country's development. The manufacture of large-scale equipment and continuous technological innovation make engineers more confident to challenge the previously unconquerable natural environment and continuously improve their ability to surmount natural barriers. 750000 bridges are connecting China's cities and villages. The migration of people and materials from one place to another has shortened the time and distance. By showing three world-class famous bridges in Western China, southern China and the capital, and the world's famous horizontal swivel technology of the bridge construction which is often used in urban three-dimensional traffic construction, this video will tell you about engineers crossed natural barriers with their wisdom and witnessed the great changes brought to people and society by one magnificent building after another.