In 1835, Tsar Nicholas I was carried away by the insane, as everyone then thought, the project "cast iron" or "ironwork". By that time, there were only three public railways in the world - two in England and one in America. Nikolai carefully studied all the proposed projects and a year later began the construction of an experimental road from St. Petersburg to Tsarskoye Selo. And after 3 years, despite the objections of the cabinet of ministers, he signed a decree on the construction of the Petersburg-Moscow railway.
The Nikolaev railway at that time became the largest in the world - 649.7 km. Construction cost 67 million rubles - a third of the annual budget of the Russian Empire. All 34 stations and both stations were built by the same architect Konstantin Ton. This is the largest architectural structure in the world. The railway gauge was extended by the emperor's personal order by 89 millimeters. He made sure that the enemy could not pass through the railway.
After exactly 100 years in 1941, these 89 millimeters will greatly impede the supply of German troops.
Namely, the Army Group Center will receive only a THIRD of the necessary ammunition for the capture of Moscow.