World’s smallest model train set? – seems likely!

Wow! David K. Smith has made what seems a shoo-in for the title of World’s smallest model train –

This is a Z scale model of an N scale train layout–a model of a model. And it works. I built it to sit in the window of a Z scale hobby shop on my “real” train layout, the James River Branch.

– and this isn’t even his first micro layout, check out one of the larger yet still impressively eentsy predecessors. [via Neatorama]