Columbia subject headings:
Architecture--Germany--Speyer.
City planning--Germany--Speyer--History.
Historic buildings--Germany--Speyer.
Speyer (Germany)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Germany--Speyer.
City planning--Germany--Speyer--History.
Historic buildings--Germany--Speyer.
Speyer (Germany)--Buildings, structures, etc.
Princeton subject headings:
Architecture--Germany (West)--Speyer.
City planning--Germany (West)--Speyer--History.
Historic buildings--Germany (West)--Speyer.
Speyer (Germany)--Buildings, structures, etc.