Check @Mostwanted Store Media & Accessories. Also 2 weeks ago I was walking @Downtown and there alot of places that sell cute stuff such as clocks and home accessories (not the best quality though). I would also recommend you to give @Gypsy-Spirit a visit they usually have cool pieces
What kind of activites are you looking for? I stumbled upon a prefumery in @Downtown called @Tebah For Perfume where you get to create your own perfume!
You can go to @Downtown and show him our old culture and @Roman Theater and after that take him to a Turkish cuisine @Zambak Turkish Cuisine or @Lale Sofrasi