The preservation of architectural heritage faces numerous challenges, from environmental degradation to urban development and neglect. The integration of visual and acoustical features in interactive 3D virtual environments offers innovative solutions to these challenges, providing comprehensive and immersive ways to experience and study historic sites. This paper explores the potential of combining archaeoacoustics, 3D modeling, and virtual reality (VR) to enhance the preservation, promotion, and accessibility of architectural heritage. Archaeoacoustics, the study of sound and acoustic characteristics of archaeological sites, provides unique insights into historical soundscapes, while 3D modeling and VR enable detailed digital reconstructions of these sites. By reviewing current methodologies, tools, and applications, this paper highlights the benefits and challenges of these technologies, including data acquisition, processing, and integration, as well as the ongoing maintenance of digital twins. The paper presents several case studies, such as the EVAA project, which recreates the acoustics of the Château de Versailles, and the Ganjali Khan project, which uses VR to document historical landmarks in Iran. These examples demonstrate the practical applications and impact of integrating visual and acoustical features in cultural heritage preservation. The future of heritage preservation lies in leveraging these digital tools to create engaging, educational, and sustainable virtual environments that capture the essence of our architectural past. As technology evolves, these methods will become increasingly vital for protecting and promoting cultural heritage, ensuring that future generations can continue to appreciate and learn from these irreplaceable assets.