Thor #337, by Walter Simonson.
One of many runs I know I need to sit down with. I've actually never read it all the way through. I have volume 1 of the Visionaries collection (which is what I read this first issue from) and I assume I've read every issue of the run. But never through. An oversight to correct one day.
I think for the moment I'll content myself with just this issue as I have enough reading projects at the moment.
But it is an excellent issue and the beginning of an excellent run of comics.