The siege of Leningrad (The communist name of St. Petersburg) lasted for two and a half years, during which 750,000 citizens of the city mainly died from starvation. Also, more than a million Red Army soldiers died to protect the town and break the siege.
In the early 1970s, this enormous monument was built at Victory Square to honor the efforts of Leningrad's residents and the Russian soldiers.
Under the monument, there is a museum, manages by the State Museum of St. Petersburg. You can access the memorial and the museum from a sub-path on the square's northeast corner, near 7th Family.