Why are the street levels of Rome and other ancient cities underground?
AI RESPONSE
- Accumulation of Debris: Over centuries, cities accumulate layers of debris from natural disasters, construction, and everyday human activities. This continuous build-up of materials raises the ground level.
- Construction Over Old Structures: In ancient times, it was common to build new structures on top of older ones. When buildings or streets fell into disrepair or were destroyed, new construction often took place on top of the remains, contributing to the elevated ground level.