"For a brief time it was Petrograd"
by cm

 Saint Petersburg is a city in Russia, the second largest after Moscow.  In 1914, the name of the city was changed to Petrograd.  When Vladimir Lenin died in 1924, the city was renamed Leningrad. 

The city's name reverted back to Saint Petersburg in 1991.  It is now an important cultural centre.  Its museum of art, The Hermitage, is the largest in the world.