St. Petersburg Metro

St. Petersburg has the deepest metro in the world; the deepest station of all is the Admiralteyskaya station in the historic area. It takes 3:14 to ride the escalator from the platform. It doesn't sound like a long time but it's long enough to be incredibly dull. Fortunately, there seems to be full G3 data at all points in the Metro. 

Some of the stations are blinged out. (I understand Moscow stations are much more elaborate). There are guided tours of the Metro which is absolutely ridiculous; the whole system is easier than Toronto's.