Old cobblestones are witnesses to history, bearing the footprints of generations and endless tales. They have left their mark in ancient cities, royal palaces, significant national sites, and even in the homes of ordinary citizens. By touching and stepping on them, we can almost feel the lifestyles and emotions of those who once lived on this land. Old cobblestones also offer significant environmental advantages. Compared to modern construction materials, they require no complex production processes or high energy consumption; they are crafted from natural stone, causing no environmental pollution. Moreover, they have a long service life and low resource consumption, aligning with the concept of sustainable development. Therefore, preserving and utilizing old cobblestones is a crucial choice in promoting sustainable architecture.