My friend....named....Bim

Hi Illinois people,

I have a friend...let's call him...Bim...who is riding the train for two weeks. He's doing photo shoots of everything he sees from MA to SF (I think) and back. He will be stopping in Chicago. He asked me for helpful hints of interesting, non-human things to shoot (with camera of course), and I mumbled inanities. Can anyone help Bim out? He's on the railway cars right now. But I think he's checking his email.

Thanks in advance.
Beila.