Проверьте правильность написания. The article I read about speaks about the architecture of St. Petersburg. The article contains 50 thousand words. The article was written by famous architects such as Ginsburg and others. It (the article) says that Saint Petersburg is the main tourist center of Russia. The entire article is divided into subsections that detail the history of each architectural object. For example, the well-known Winter Palace –The state Hermitage, St. Isaac's Cathedral, Kazan Cathedral, etc.