Acropolises became the nuclei of large cities of classical ancient times, and served as important centers of a community. Some well-known acropolises have become the centers of tourism in present-day, and, especially, the Acropolis of Athens has been a revolutionary center for the studies of ancient Greece since the Mycenaean period.
The passage describes acropolises as being crucial to ancient city development and their continued importance in modern times, especially the Acropolis of Athens, which has been a significant site for studying ancient Greece since the Mycenaean period.