Columbia subject headings:
Castles--Czech Republic--Prague--History.
Palaces--Czech Republic--Prague--History.
Prague (Czech Republic)--Buildings, structures, etc.--History.
Prague (Czech Republic)--History.
Pražský hrad (Prague, Czech Republic)--History.
Harvard subject headings:
Castles--Czech Republic--Prague--History.
Palaces--Czech Republic--Prague--History.
Prague (Czech Republic)--Buildings, structures, etc.--History.
Prague (Czech Republic)--History.
Pražský hrad (Prague, Czech Republic)--History.
Princeton subject headings:
Castles--Czech Republic--Prague--History.
Palaces--Czech Republic--Prague--History.
Prague (Czech Republic)--Buildings, structures, etc.--History.
Pražský hrad--History.