Kayseri is an old and large city with a strong economy. It carries lots of monuments from the days of Seljuks and Ottomans, and is also the home town of the most accomplished architect
http://www.greatbuildings.com/architects/Sinan.html Mimar Sinan. Population has been steadily increasing and nowadays is around 800,000 in the urban center.Kayseri was also on the Silk Route and Karatay and Sultanhani posts on this route reside in Bünyan town's borders. Bünyan is also famous for its carpets which makes Kayseri a popular purchase-stop for tourists visiting Cappadocia. http://wikitravel.org/en/Kayseri