Book of science popularizer Vladimir Igorevich Малова "As did trains appear" under earth? simply and interestingly will tell about the device of subway - as and when it appeared in the different cities of the world, who the first suggested to build a subway in Russia, as built and adorned oneself to the station of underground passage, that takes place in a subway at nights, when passengers leave, and многое-многое other.For a midchildhood.