Mosques are iconic buildings that serve as centers for religious, social, and community activities, these iconic edifices can play a key role in raising awareness for sustainability and promoting passive solutions. Mosque architecture was marked by key elements such as the minaret and dome as they have challenges in contributing to sustainable practices. The conventional design, primarily focusing on symbolic and religious significance, lacks integration with environmental considerations, leading to suboptimal indoor air quality and thermal performance. The research focuses on rethinking the roles of the two key architectural elements in mosques - the minaret and the dome by introducing them as environmental components contributing to passive cooling and ventilation. Traditionally, the minaret has served defferent functions of calling people to prayer, while the dome has structural and symbolic significance. Yet these elements often lack optimization for sustainable environmental performance. This research aims to outline the ideal geometric dimensions, orientations, and configurations of minarets and domes to maximize their passive cooling capabilities. This involves exploring the potential of redesigning the minaret as a wind catcher complementing the dome for enhanced ventilation and air movement. The aim is to transform these elements into active contributors to thermal comfort while respecting their cultural and religious importance. The study assesses the environmental impacts of different design variations through numerical simulations using Design Builder software. The aim is to develop sustainable feasible design models that can be applied to future mosque constructions while preserving the cultural and architectural significance of these key structures. The research outcomes provide valuable insights and design indications to create more environmentally responsive mosque buildings. By leveraging the passive cooling potential of the minaret and dome, the study seeks to reduce energy consumption and improve indoor comfort - a key step towards realizing sustainable practices in religious and cultural architecture. Key Words: Key elements, Sustainable design, minaret wind catcher, dome infiltration.