Columbia subject headings:
Harvard subject headings:
Saint Petersburg (Russia)--Buildings, structures, etc.--History.
Saint Petersburg (Russia)--Guidebooks.
Saint Petersburg (Russia)--History.
Princeton subject headings:
Guidebooks.
Historic buildings--Russia (Federation)--Saint Petersburg.
Parks--Russia (Federation)--Saint Petersburg.
Saint Petersburg (Russia)--Buildings, structures, etc.
Saint Petersburg (Russia)--Description and travel.
Saint Petersburg (Russia)--Guidebooks.