In 1935, when the first stage opened, a branch was built from Okhotny Ryad to the Smolenskaya Square on the Garden Ring, further extended to the Kiyevsky Rail Terminal in 1937.
In 1935, when the first stage opened, a branch of the existing line ran from Okhotny Ryad to the Smolenskaya Square on the Garden Ring. The branch was extended to the Kiyevsky Rail Terminal in 1937.