From the author of Soviet Bus Stops, an underground trip through the Soviet Metro "For us," said Soviet leader Nikita Khrushchev in his memoirs, "there was something supernatural about the Metro." Visiting any of the dozen or so Metro networks built across the Soviet Union between the 1930s and 1980s, it is easy to see why. Rather than the straightforward systems of London, Paris or New York, these subways were used...