Komsomolskaya Square, known as Kalanchyovskaya before 1932, is a square in Moscow, with a blend of revivalist Tsarist and Stalinist architecture. It is referred to informally as Three Station Square after the three rail termini situated there: Leningradsky, Yaroslavsky, and Kazansky. These stations connect Moscow with Saint Petersburg, northwestern Russia, the Volga region, and Siberia via the Trans-Siberian Railway.
Its origins lay with the construction of the Moscow-Saint Petersburg Railway in the 1840s, when Kalanchyovskoye Field outside the Garden Ring was selected to allocate the Nicholas Railway Station. In 1862 the Yaroslavsky Rail Terminal, a terminus of the Trans-Siberian Railway, was constructed nearby. On the opposite side of the field the Kazansky Rail Terminal was inaugurated two years later. Until 1909, a railway line leading to Kursky Rail Terminal traversed the square; it is now elevated so as not to interfere with street traffic.
Wikipedia https://en.wikipedia.org/wiki/Komsomolskaya_Square_(Moscow)
Address 1 Комсомольская площадь, Москва 107140, Russia
Coordinates 55°46'29.526" N 37°39'16.799" E