"It is an incomparable route from east to west with a wide variety of beautiful scenic views," Sun Lu, the series' director, told the Global Times on Monday. 

"More importantly, we can see the development of modern Chinese civilization in different regions through these geographical clues."

Through interesting small stories about subjects like intellectual property protection, digital delivery systems, legal education and smart urban management, the five-episode documentary manages to explore grand themes while remaining close to people's lives.  

The significance of the word "highway" is reflected not only in its actual function as a traffic network, but also in expectations and yearning.