Nikolai Vasilyevich Vasilyev

Vassilieve's outstanding creativity and imagination dominated most of his collaborative work, as his colleagues were left to finesse the plans and determine the structural engineering of the project.

Amongst the most visible works of Vassilieve remaining in St. Petersburg are the Mosque (Санкт-Петербургская соборная и кафедральная мечеть) on Kronverkski Prospect, 7., The New Passage («Новый Пассаж») at Liteiny Prospect, 57 and the Guards Economic Society Building (Торговый дом Гвардейского экономического общества) at Bolshaya Konyushennaya Street, 21-23.

Vassilieve is considered one of the leaders of the "Northern Modern" architectural movement, that emerged in St. Petersburg around 1900, influenced both by the American architect H.H.

Later, unemployed due to the Great Depression, he, nevertheless, continued to work on a part-time basis for Shreve, Lamb and Harmon as well as a freelancer for competitions.

He entered and won a prize in the 1931 Palace of the Soviets Competition, switching formal idioms once more, now to a radical modernism influenced by Constructivism.