The Moscow Metro is famous for having beautiful stations.  There is, in fact, a lot of art like this in many of the stations.  This mural is in the Kiev station and show the Ukrainans rallying to the revolution in Sophia Square in front of the statue of Chelmnitsky, famous as the liberator of Ukraine from the Poles.  His role as instigator of pogroms against the Jews is usually not mentioned.  You can be taking your life in your hands by stopping to admire the art, however, since there is almost always an enormous horde of people in  a big hurry rushing past.   The Metro is one of the relatively few places where you can still see numerous images and reminders of the Soviet period. Many of the stations have distintinctive architectural styles.  The trains run very frequently and are almost always full.  A digital display at the end of each platform counts the minutes and seconds since the previous train left (not as you may read, the time till the next train).  The stations are labyrinthine, with all sorts of connectors and cross overs.  These are well marked in Russian, but its hard to imagine finding your way very easily without being able to read Russian.