Growing up as a kid, I remember the bright red 90s trains that would clickety clack their way through the city. Going to the transit museum was worth just being able to see those trains again, and being able to sit in them. It was also very interesting to be able to see the older version of trains- and it felt as though the older the train got, the more comfortable the seats became!
Another thing that really caught my attention at the transit museum was the different types of tokens that were used as forms of payment. For one thing, I always believed that metro cards were used far longer (early 90s at least) than they actually were (started being used in 2000s), and was surprised that up till 1995 tokens were used for the trains (I don’t remember tokens for the trains perhaps since I never had to buy them myself at that age). One of the other interesting parts of the museum that caught my attention was this mounted plaque with things called slugs- that were counterfeit tokens so that people could get past the turnstiles without paying. I thought it was extremely interesting and funny that the MTA had a copy of each type of counterfeit token for the ages.