Anyone out there got any ideas on what to do with a stack of National Geographic magazines from the past 4-5 years?

It seems like a shame to throw them out (albeit, via the recycling bin).

Given the trashy magazines covering the tables in so many doctor offices and other waiting rooms, perhaps it's best to leave some there next time I go so that people have something decent to read.

Maybe I should leave issues on the train with a tag that says "take me, pass me on, learn from me" for anyone who wants them.