Crisscrossed by rivers and canals and brimming with architecture, art and history, St. Petersburg is a marvelous city to explore http://on.natgeo.com/2F92R6j

Crisscrossed by rivers and canals and brimming with architecture, art and history, St. Petersburg is a marvelous city to explore http://on.natgeo.com/2F92R6j 

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