Bee Flowers took some amazing photo of the Moscow Metro stations. This one is Electrozavodskaya, the larger pic at Bee's website is much, much cooler: Link

If you prefer the gritty look of the Moscow metro, why not take a look at the underground railways themselves? (for more, see: Link. Original photographer's website: Link - Thanks Alex A. Naanou!)

See also: Moscow Subway Car "Nailed to the Ground", People You Meet in the Moscow Subway, and Subway Stations from Around the World.