Istanbul

Food:
Ulus 29 - killer view on a mountain side. Al fresco take-your-breath-away dining, and the food is sensational.
Mikla - urban, modern atmosphere, great food, killer view.
Baklava & lemonade on the street.
Street vendors and small food shops are great, and fresh.

Party/Drink/Food:
Reina (http://www.reina.com.tr/2008/) - it's a big complex of several bars and restaurants - all kinds of deliciousness, right on the water. Fantastic.
Anjelique - we went on a weekday and it was dead, but supposed to be phenomenal on weekend.

Tourist stuff:
Grand Bazaar, Hagia Sophia, The Blue Mosque, Topkapi Sultan Palace (harem, kitchen, etc.)

Other:
Turkish bath/hammam