VALHALLA
| Date | Clue |
|---|---|
| 2020-02-13 | Locale in Wagner's "Das Rheingold" |
| 2010-10-31 | Wagnerian opera setting |
| 2007-01-19 | Wagner opera setting |
| 1997-08-31 | "Das Rheingold" locale |
| Date | Clue |
|---|---|
| 2020-02-13 | Locale in Wagner's "Das Rheingold" |
| 2010-10-31 | Wagnerian opera setting |
| 2007-01-19 | Wagner opera setting |
| 1997-08-31 | "Das Rheingold" locale |