The article considers numerous examples of the origin of the ideas regarding the creating of large scale multi-figured complexes and spatial series of monumental city sculpture devoted to perpetuating the memory of higher authority representatives, outstanding military officers, artists and scientists referring to the period from 1860 to the 1920-s and located in the main open public spaces both in the imperial Saint-Petersburg and in the revolutionary Petrograd. In the history of the city spatial culture development, well known are numerous program proposals which have endured the eras of revolutionary change of the power. In different eras, these proposals included the ideas, significant for the society of those times, from creation of the avenue of busts and monuments of the governors of the Ancient Russia, the Moscow Russia and the Russian Empire along the Ekaterina's channel (1869), which was to be filled, to the well known Lenin`s plan of the monumental propaganda (1918-1921). Being program by character, these proposals not only comprised the ideas preserving the memory of the highest acts and achievements of the Russian statehood, but were intended to form the spatial environment surrounding the citizens, appealed to their thinking, supported in people the feeling of belonging to the domestic and world culture.