Two of my friends recently got married, and since one of them is Turkish they're going to have a "proper" ceremony there so that all her relatives can attend (Istanbul, btw). I'm going to be there for a week so I'm looking for some suggestions. What should I make sure to see or do while I'm there? Are there any customs or other weird stuff I need to be aware of? I've never been outside of the US apart from a brief trip to Quebec, so I really have no idea what I'm in for. Any advice or suggestions?