The world's longest railway, the Trans-Siberian Railway in Russia, is 5,777 miles (9,297 kilometers) long. It runs from Moscow to Vladivostok

If the auxiliary route to Nakhodka is included, the distance becomes 5,865 miles (9,436 kilometers). The Trans-Siberian Railway was opened in sections. The first train transporting goods reached Irkutsk on August 27, 1898.
The Baikal-Amur Northern Main Line, which began operating in 1938, shortens the distance from Moscow to Vladivostok by about 310 miles (500 kilometers). The journey takes approximately 7 days, 2 hours, and crosses 7 time zones. There are 9 tunnels, 139 large bridges or viaducts (bridge carrying a railroad over a valley), and 3,762 smaller bridges on the whole route. Nearly the entire line is electrified.
In comparison, the first American transcontinental railroad, completed on May 10, 1869, is 1,780 miles (2,864 Kms).