Architectural ruins are the remains of structures that have fallen into disrepair or been abandoned over time. These remnants can include buildings, temples, or monuments that once held significant cultural or historical value. They often provide insight into the architectural styles, materials, and construction techniques of the past. Many famous architectural ruins, such as the Colosseum in Rome or the Machu Picchu in Peru, attract tourists and researchers alike. These sites serve as important archaeological resources, helping to preserve the history and heritage of civilizations that created them.