By ABBIE KIEFER

Gardiner, Maine

Raw granite and brick, hip roof like a helmet. At its height, it hummed: seventeen trains daily, lumbering in along the river. I imagine E.A. here with his ticket and his trunk. With his back to the brick, listening for a whistle.

Now the depot is a cannabis dispensary. They keep records in the ticket booth, make brownies in the basement. Preservationists call this adaptive reuse.