Columbia subject headings:
Architecture--Germany--Königswinter.
Historic buildings--Germany--Königswinter.
Königswinter (Germany)--Buildings, structures, etc.
Königswinter (Germany)--Description and travel.
Harvard subject headings:
Architecture--Germany--Königswinter--Guidebooks.
Königswinter (Germany)--Buildings, structures, etc.--Guidebooks.
Königswinter (Germany)--Guidebooks.
Monuments--Germany--Königswinter--Guidebooks.
Princeton subject headings:
Architecture--Germany--Königswinter--Guidebooks.
Königswinter (Germany)--Buildings, structures, etc.--Guidebooks.
Königswinter (Germany)--Guidebooks.
Monuments--Germany--Königswinter--Guidebooks.