Track: Lionel, MTH (diameters range from 27 to 42 inches) Switches: MTH Motive power: K-Line, Lionel, MTH, Williams Rolling stock: Atlas O, K-Line, Lionel, Menards ...

The main challenge here was the extremely limited space available: the track in N-scale layouts is ... cameras in model railroad engines before, but that was in the huge O scale.