The increasingly important role of museums has motivated academics and professionals in this field to concentrate more on museum visitors. Visiting museums has recently become a way for visitors to satisfy their generative needs. So this study was conducted to explore generativity, defined as the desire to improve and protect the younger generations' improvement through self-expanding forms, and its significance on museums' visitors' psychological well-being, experience and engagement. For this purpose, 360 structured online questionnaires were conducted with the visitors of Great Cairo historical museums. This questionnaire consisted of 36 items based on a five-point Likert scale technique ranging from: “strongly disagree" (1); to “strongly agree" (5). The findings revealed that there was a directly significant effect of generativity on visitors' engagement, experience, and psychological well-being. Furthermore, both engagement and experience directly affect visitors' psychological well-being. Moreover, findings showed that engagement and experience partially mediate generativity and visitors' psychological well-being. Finally, according to the findings of this study, Theoretical contributions and practical implications were provided.