What is what does trans siberian mean?

The Trans-Siberian Railway is a network of railways that spans the entirety of Russia, from Moscow in the west to Vladivostok in the east. This railway was built between 1891-1916 and covers a distance of 9,289 kilometers (5,772 miles), making it one of the longest railway lines in the world. It passes through some of the coldest regions on Earth, such as Siberia, and provides a crucial link between Russia's eastern and western regions. The Trans-Siberian Railway is also a popular tourist attraction, with travelers taking the multi-day journey to experience the vast and diverse landscapes of Russia.