VII. The coldest high-speed railway: Harbin-Dalian high speed rail is 921 km long. According to meteorological records in the past 30 years, the temperature difference in a year of the three provinces in China's northeastern region reaches 80 degrees Celsius, making it the coldest region and the region with the maximum temperature difference in China.

(File Photo)

VIII. The lowest ticket price: A economy-class ticket from Changle to Weifang in eastern China's Shandong Province, is the cheapest one, priced at 4.5 yuan. The train runs 24 km in only 12 minutes.