Istanbul great fun city. So many other places too but we did not go other than Istanbul and Kusadasi to see the ruins of Ephesus. We visited the Topkapi Palace, Blue Mosque, Hagia Sophia and you can't forget the Grand Bazaar. Plan on spending some time there to shop and haggle for some fun things. about 6 years ago
Don't miss Cappadocia & the fairy chimneys in central Turkey, it is a unique landscape that is out of this world & that you will never forget.
Pamukkale in S.W. Turkey would be worth a visit,
Ephesus is in the area too & would be worth seeing.
http://www.allaboutturkey.com/efes.htm about 6 years ago
#Turkey is my fave country. My tips: http://traveleater.wordpress.com/category/europe/2011/07/09/turkey/ about 6 years ago
#Turkey is my fave country. My tips: http://traveleater.wordpress.com/turkey-not-greece/
(better link) about 6 years ago
We recommend you to visit Turkey in spring, due to nicer weather conditions(and also less touristic)
Try to get to know the local culture, Turks are warm blooded. Eat lots of Turkish food visit mosques, churches, palaces. Try bargaining in the local markets :)
We hope you enjoy your Turkey trip. about 6 years ago