The record for the largest collection of Monopoly memorabilia belongs to Neil Scallan from the United Kingdom. As of the latest verified counts in 2026, his collection includes over 3,500 unique versions of the board game. Scallan has spent years sourcing editions from all over the world, ranging from rare vintage sets to niche regional versions and themed editions based on popular culture, movies, and sports teams. The Guinness World Record for the "Largest collection of Monopoly games" has been held by him for several years, as he continues to add new and exotic sets to his inventory. His collection is so vast that it serves as a historical archive of the game's evolution since its commercial release by Parker Brothers in 1935. While many people enjoy the classic Atlantic City version, Scallan’s hoard highlights the global cultural impact of the game, featuring editions in dozens of different languages and specialized versions made for specific anniversaries or charitable causes. Maintaining such a collection requires significant climate-controlled storage to prevent the aging of the paper and cardboard components of the older, more valuable sets.