A collection of maps of the Moscow metro is so extensive that it must have all of them. (Above, one from 1935; they go as far back as 1931, and there are nine from 2010.) In Russian.
A collection of maps of the Moscow metro is so extensive that it must have all of them. (Above, one from 1935; they go as far back as 1931, and there are nine from 2010.) In Russian.