Check sites like Znanija.com or Uchi.ru. You can post a photo of a specific task from the Igonina/Gorelova workbook, and students or teachers usually provide the answer within minutes.
Do you have a from the workbook that you need help with right now? gdz po moskvovedeniiu g.s igonina, n. a gorelova
Identification of styles (Moscow Baroque, Classicism, Modernism) and famous landmarks. Check sites like Znanija
The workbook typically covers the following areas for grades 8-9: gdz po moskvovedeniiu g.s igonina, n. a gorelova
Famous Muscovites and their contributions to Russian history. Tip for solving tasks