Most people who visit Istanbul from North America spend at least three days and want to take in as much of the local history, scenery and cuisine as possible.   However, visitors from Europe, who might drop in for a weekend, may be more intent on the entertainment scene.  If this is you, here are some ideas for your weekend from an article published by the New York Times. If you would like me to suggest hotels and restaurants, reserve Guides or drivers, just drop me a line.