The Trans-Siberian Railway, historically known as the Great Siberian Route and often shortened to Transsib, is a large railway system that connects European Russia to the Russian Far East. Spanning a length of over , it is the longest railway line in the world. It runs from the city of Moscow in the west to the city of Vladivostok in the east.
During the period of the Russian Empire, government ministers—personally appointed by Alexander III and his son Nicholas II—supervised the building of the railway network between 1891 and 1916. Even before its completion, the line attracted travelers who documented their experiences. Since 1916, the Trans-Siberian Railway has directly connected Moscow with Vladivostok. , expansion projects remain underway, with connections being built to Russia's neighbors (namely Mongolia, China, and North Korea). Additionally, there have been proposals and talks to expand the network to Tokyo, Japan, with new bridges that would connect the mainland railway through the Russian island of Sakhalin and the Japanese island of Hokkaido.
The railway is often associated with the main transcontinental Russian line that connects many large and small cities of the European and Asian parts of Russia. At a Moscow–Vladivostok track length of , it spans a record eight time zones. Taking eight days to complete the journey, it was the third-longest single continuous service in the world, after the Moscow–Pyongyang service and the former Kyiv (Kiev)–Vladivostok service , both of which also follow the Trans-Siberian for much of their routes.
The main route begins in Moscow at Yaroslavsky Vokzal, runs through Yaroslavl or Chelyabinsk, Omsk, Novosibirsk, Krasnoyarsk, Irkutsk, Ulan-Ude, Chita, and Khabarovsk to Vladivostok via southern Siberia. A second primary route is the Trans-Manchurian, which coincides with the Trans-Siberian east of Chita as far as Tarskaya (a stop east of Karymskoye, in Chita Oblast), about east of Lake Baikal.