When I was a college and graduate student in New Jersey, I often used the 41st Street tunnel (now part of the Times Square Station), the 50th Street tunnel (between 8th Ave and Broadway, now open only on weekdays) and the 33rd Street tunnel (never beautiful, always convenient, now closed).

I could continue, but there remains a beautiful network of underground passages that would save a mess of walkers, if only they knew ir was open.

Let me know if I can help restore them.

Harry