It says that abandoned ancient cities have in fact risen in altitude over the centuries becoming "mounds". But it also says that Rome's famous ruins are at surface level, but doesn't explain ruins that have been found deep underground. So I'm left wondering if Rome and cities like it have gotten a lot higher or not.
Why are archaeological sites are so far underground? Are ancient cities actually getting higher in altitude as old ruins get covered up?
Why Pompeii was buried is clear. I am more curious about continuously occupied cities like Rome. How did the ruins get underground there?
The best answer I could find was this:
http://www.straightdope.com/columns/read/813/how-come-archae...
It says that abandoned ancient cities have in fact risen in altitude over the centuries becoming "mounds". But it also says that Rome's famous ruins are at surface level, but doesn't explain ruins that have been found deep underground. So I'm left wondering if Rome and cities like it have gotten a lot higher or not.