This tour, co-conceptualized and led by Justin Rivers and Aaron Asis, was excellent! This is my second tour with Justin and I was not disappointed -- he is just as knowledgable about the history of the New York subway system as he was about Penn Station, and his enthusiasm is infectious. Aaron brings the same deep knowledge and enthusiasm about public art to the tour, encouraging tour-goers to see the artist's intention as well as reflect on their own participation in the artistic process. I will never ride the subway or wait on the platform the same way again, as I will constantly be on the lookout for art! Thanks so much -- highly recommended.