The Caper story involves criminality, but is not categorisable as detective fiction because the crimes are perpetrated by the main character(s) in full view of the reader.
... Museum[?], St. Ives, Cornwall
Penlee House, Penzance[?]
Tate St. Ives[?]
Cumbria
Abbot Hall Art Gallery[?], Kendal[?]
Beatrix Potter Gallery[?], ...