- Highlights Press
- 5.1054 metre(s)
- United States (Honesdale)
The longest hidden picture puzzle fold-out book (commercially available) is 5.10 m (16 ft 9 in), and was achieved by Highlights Press (USA) at the Highlights Press Editorial Offices in Honesdale, Pennsylvania, USA, on 30 July 2019.
The record was set by the Longest Hidden Pictures® Puzzle Ever, published by Highlights™.