III. World's fastest high-speed rail (HSR) trains: The rail from Shaoguan, Guangdong province, to the western section of Leiyang, Hunan province, is 248 km long and the train runs with a speed of 316.6km/h for 47 minutes.

(File Photo)

IV. The longest high-speed rail line: Harbin-Wuhan railway is 2,446 km long, 23 km longer than the Lanzhou-Xinjiang line and 25 km longer than Harbin-Shanghai line. It takes a train 14 hours and 38 minutes to run from Harbin, NE of China to Wuhan, the cpital city of central China's Hubei Province.

(File Photo)