Photographers turned a train window into a photo frame to document the faces of people traveling home for the Spring Festival holidays in China. /CFP Photo

Railway is the main mode of transport for people heading home for the Spring Festival. /CFP Photo

Each year, around a month before the Spring Festival, people rush to book train tickets online, by phone or line up at ticket offices to guarantee a way back home. /CFP Photo

It is estimated that this year around 356 million passengers will travel by rail in China between January 13 and February 21. /CFP Photo