Built between 1891 and 1916 to connect Asian and European cities across the great span of Russia, the Trans-Siberia Railway celebrates its centennial this year. Crossing a record seven time zones and offering up vast landscapes, the world's longest railway line has always attracted adventurers during its 100 years in service.

For the modern journey, passengers can travel in either direction and can choose among three slightly different routes, the Trans-Siberian (the longest, spanning Moscow to Vladivostok, Russia), the Trans-Manchurian (Moscow to Beijing, via Harbin, Manchuria, China), and the Trans-Mongolian (the shortest, Moscow to Beijing via Mongolia).

In the summer of 2015, Chinese photographer Yunya Yin wanted to capture the experience of this grand journey and bought one ticket for the Trans-Mongolian passage. Leaving from Beijing, Yin photographed her five-night, six-day, 4,736-mile crossing to Moscow.

elizabeth