Yesterday when we left the house I had planned to look for “math” on our trip to New York City. I have a tendency to spot symmetrical objects/scenes and tessellations as I view the world and I just thought that Thursday would not be any different than other days. The first leg of our journey was on SEPTA from Morton to 30th Street in Philadelphia. I noticed the floor runner between the aisles of seats. I didn’t take a photo of it but when I got off the train, I took this photo:

It took me some time to fully realize what the dominant mathematical theme for the day would be. Once I got over the fact that tessellations were not going to dominate, I took these photos:

I should have had a clue when I chose what to wear in the morning!