I love how you can dip out of the office for a 15-minute run to grab some lunch, and you're bound to come across something interesting. Like today, I raced across the street and abruptly stopped to watch a guy challenging strangers to 3-minute speed chess on a random corner. The games were free for competitors and spectators alike, but donations were greatly appreciated, of course. I watched this guy beat three different people in about ten minutes.
And on Friday the 13th (tomorrow/today/yesterday), Joe.My.God captured this on 41st and Fifth.