Columbia subject headings:
Architecture--Russia (Federation)--Saint Petersburg.
Saint Petersburg (Russia)--Buildings, structures, etc.
Harvard subject headings:
Architecture, Modern--17th-18th centuries--Russia (Federation)--Saint Petersburg.
Architecture, Modern--19th century--Russia (Federation)--Saint Petersburg.
Architecture--Russia (Federation)--Saint Petersburg
Neoclassicism (Architecture)--Russia (Federation)--Saint Petersburg.
Saint Petersburg (Russia)--Buildings, structures, etc.
Saint Petersburg (Russia)--History.
Princeton subject headings:
Architecture--Russia (Federation)--Saint Petersburg--17th century.
Architecture--Russia (Federation)--Saint Petersburg--18th century.
Architecture--Russia (Federation)--Saint Petersburg--19th century.
Saint Petersburg (Russia)--Buildings, structures, etc.
Saint Petersburg (Russia)--History.