Covering an area 1700 hectares and encompassing 27 centuries of history within it, the UNESCO World Heritage Site of Naples, is also one of the largest Historic Centres of Europe. Reputed to be one of the oldest continuously inhabited cities in the World, as well as the 9th most populous Urban areas in Europe. When viewed from the elevated position of Castel Sant”Elmo above the City, one gets an a better idea of just how dense this Historic Centre is.
……….the journey continues……
4otomo 
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Dense indeed!
This is fantastic post for the challenge! Dense in the truest sense.