Originally Posted by rail:
My favorite bridge is the Nicholson Viaduct in Nicholson Pa. Years ago, my wife and three boys rode the Steamtown excursion over the Nicholson Viaduct...
I'll second that, rail. The Nicholson Bridge is a truly amazing sight. The first time I ever saw it was on a drive from Pennsylvania to Vermont. It's hidden from view until suddenly you round a curve, and all at once there's an enormous white bridge filling the sky overhead. And if you wait till a train crosses it, you'll find that the train looks like an N scale model on a G scale bridge! A beautiful piece of work.