Bob Bartizek's Pennsylvania & Western Railroad is one of the best and most unusual O gauge layouts I've ever seen. Bob models the PRR, and he runs his trains like the real thing. His layout is taken right out of the HO scale playbook, with staging yards at both ends of the railroad. It also features a stunning model of the world-famous Horseshoe Curve. It's a true work of art.
You can see all of Bob's layout, plus Bill Bramlage's amazing Tower City layout HERE.