Sorry Celeste, I don't know as I never bought any of the National Geographic books.
They had a good selection of transport books right at the very back and I bought many titles which included photographs of railway stations as they were when in use, to what is on the same location today - sort of 'then and now'. In the basement, they had all the history and reference titles - although they used to move these about from time to time. On the ground floor to the right as you went in, there was a map section if memory serves me correctly.