> Times Square area in NYC.
quick funny story, my family and i were in Times Square last year for New Year's. Thousands of people everywhere as you can imagine. We're walking down the sidewalk and right as rain my wife runs into someone she knows from all the way back in Texas. Among all those people from all over the world she still manages to run into someone she knows. My wife and her talk while me and the boys hang around waiting just like we've had to do at our local grocery store back home. My kids and I still laugh at that story.
I’ve read about the “international airport paradox” which says you’ll likely see someone you know at an international airport - because if you’re in the group to use them, you’re already in a pretty small group.
I've actually run into people I knew in Manhattan. But they were from the Northeast so it wasn't that unusual.