| Clue | Source | Date |
|---|---|---|
| Large museum on the Mall | Newsday | 28 Nov 2019 |
| Art museum in Trafalgar Square, London | The Washington Post | 18 Feb 2017 |
| *Where to view Calder's 'Vertical Constellation with Bomb' | Wall Street Journal | 10 Feb 2017 |
| Mellon gift to the country. | ||
| Famous museum. |