If you've ever travelled on a high-speed train, you'll have seen the outside world speeding past you in a blur.
But if you're in the driver's seat, life in the 'fast lane' actually appears to be a lot slower than you might expect, as this video shows.
The footage, which lasts just over a minute, captures a segment of a journey between Datong and Xi'an in China while the high-speed train was travelling at just over 170 miles per hour.
In the footage, which was posted on Youtube, the conductor is seen making various hand movements as the train glides along the tracks.
He announces the distance in Chinese as he counts down the number of kilometres, from three to one, until the train approaches a station.
At one point, the train covered a whole kilometre in just 13 seconds.
The locomotive speeds past numerous electricity pylons along the way, which can all be seen clearly despite the fact that the train is travelling so quickly.
As the train passes through Weinan Station, it seems to slow down momentarily.
According to the caption posted alongside the video, the train was actually travelling at 275km/h (170mph) as it passed the station.
This is significantly faster than the average high-speed train in the UK, which travels at speeds of around 125 miles per hour, and not quite as fast as the bullet trains in Japan, which travel at an average speed of 200 miles an hour.
Realist12345, Belfast, United Kingdom, 41 minutes ago
what a boring view.
Netspectre, Fort Lauderdale, United States, 1 hour ago
Love the white gloves.
whatsup321, Godstone, United Kingdom, 2 hours ago
that looks like a very boring job
One Eyed Man, Littlehampton, 4 hours ago
But we have been told for years and years Speed Kills!, were they not telling us the truth?
Galaxar, Mars, 6 hours ago
OMG - he has no steering wheel!
Bear Dancer, Dalian, China, 11 hours ago
The speed of these trains is very deceptive I travelled from Dalian to Shenyang on one and looking out of the window as the train accelerated thought it was a bit slow, when I glanced at the speed indicator it read 305km/h
HKer, Hong Kong, China, 9 hours ago
I usually check it with the GPS on my phone. Within +- 5km difference. The fastest record on my phone is 320 km/h.
W.T.F., Hell, United States, 14 hours ago
Looks exactly like I thought it would.