@yo' -- i like old mill buildings too. there are still a lot of them in this area, and many are being rehabbed for new uses, like dwelling lofts. and i
do like trains. (i've still got my paris carte orange.) the trains are really neat in japan, and also good in most of europe. and if you like railroad history, here's the story of a u.s. museum i really like:
borail.org//History-of-the-Museum.aspx .