What caused the Greek ruins?

The Greek ruins are primarily the result of a combination of natural disasters, such as earthquakes and erosion, as well as human activities, including warfare, neglect, and the decline of the ancient Greek civilization. Over centuries, many structures fell into disrepair or were repurposed for new uses, leading to their deterioration. Additionally, the rise of Christianity and the subsequent decline of pagan practices often led to the destruction of ancient temples and monuments. Today, these ruins serve as important archaeological sites that provide insight into ancient Greek culture and history.