Trivia: What is the longest single rail system in the world?
The Grand Imperial Railroad
The Red Train
The Polar Express
The Trans-Siberian Railroad
The correct answer is The Trans-Siberian Railroad
So why is this answer correct? : The Trans-Siberian Railroad spans 5,778 miles from Moscow (in the west) to Vladivostok (in the east). There are three other routes within the Trans-Siberian Railway system, each stretching further north or south, but its namesake route is the most popular. Construction began under Tsar Alexander III in 1891 and was finalized in 1916. The scenic route includes famous landmarks such as the Ural Mountains, the Volga River (the longest in Europe), and Lake Baikal, the largest freshwater lake in the world.