Columbia subject headings:
Monuments--Switzerland--Valais.
Religious architecture--Switzerland--Valais.
Valais (Switzerland)--Antiquities.
Valais (Switzerland)--Buildings, structures, etc.
Harvard subject headings:
Art--Switzerland--Valais.
Monuments--Switzerland--Valais.
Valais (Switzerland)--Antiquities.
Princeton subject headings:
Monuments--Switzerland--Valais.
Valais (Switzerland)--Antiquities.