Portland's not a big city. It's what I like to call a small, big city. It's an oxymoron that works. I too thought I had seen it all, until this. I saw a picture of this tunnel awhile back and really thought it was of the OTHER Portland. I've often mistakenly, Googled just 'Portland restaurants' and gotten all excited seeing places I've never visited or seen. Then I realize it's the Portland out there, not here. So when I glanced and caught a glimpse of this place, I really thought I was out West. I was wrong. Elenka and I found it this winter, but couldn't really get at it, because of snow cover leading to it. This week I returned and walked the length. It's very close. It's just off Commercial Street, and even still has a bit of track running inside. As I said before, thought I'd seen it all. I was wrong. Maybe I have now. Then again... I doubt it.