Istanbul has a truly unique athmosphere, but not only because here you can stand with one foot on European soil and on Asian with the other at the same time - namely on the Bosphorus Bridge.
This town has every characteristic of Paris, spiced with special Eastern flavour. It is bohemian, romantic, chich, artistic, elegant...all that with the special feeling of just getting off Orient Express in the golden days, in 1889.
But Istanbul has everything to offer for the shopping maniacs and the hunters of culinary pleasures too.
Best time to visit is in spring or autumn, avoid summer heat! Spend at least five days there and return frequently!