Man... I've never been touring in a tunnel! What a cool thread though!

I want to contribute! This section of the rail trail near Northampton, MA has an old steel frame bridge that forms a kind of "green" tunnel, since foliage grows on all sides, and over the top. It's a beautiful and surreal riding experience. This is us on our 1,500 mile loop of the Northeast. Sorry for the funky tilt/shift setting, I was still learning to shoot back then...