Each chapter of this volume provides a window into the vibrant world of Middle and Late Byzantium, offering new insights into the complexities of Byzantine ecclesiastical spaces. This illuminating exploration reaches beyond the traditional focus on churches solely as buildings, unveiling the complex tapestry of cultural and social dynamics contained therein. From the towering monuments of Constantinople to hidden gems scattered throughout the empire, the scholars gathered here chart a new course, embracing inclusivity and diachronic perspectives. They trace not only architectural typologies but also material culture, ritual contexts, and sensory experiences, reaching a holistic understanding of the church building. Insights from archaeology, art history, anthropology, and other fields paint a nuanced picture of how Byzantine churches—including the subtleties of sculpted decorations, painted frescoes, and architectural elements—functioned within their communities and historical contexts. Blending regional specificities with global perspectives and sensitivity for the intricate interplay of history, culture, and human agency embodied in these enduring edifices, Religious Buildings Made in Byzantium: Old Monuments – New Interpretations challenges conventional narratives through a set of compelling journeys into the rich legacy of Byzantine religious architecture.