So next weekend (Oct 10th and 11th) is Open House NY. I don’t know if you heard of it, but OHNY hosts educational workshops on architecture around New York City. It is mostly free, but I think all of the tours are definitely free. Places ranging from the Ft. Greene Park monument to the Navy Yard are open (Navy Yard by reservation, it’s a bike tour) to the general public. I encourage you to go, and I can talk more about it if you ask, or just check out the website below.