Tech Model Railroad Club

Passenger station and city scene on the Tech Nickel Plate Railroad. It includes a view of the HO scale model of the Green Building.
A view of the HO scale model of the Green Building at the Tech Model Railroad Club in Cambridge, Massachusetts

The Tech Model Railroad Club (TMRC) is a student organization at the Massachusetts Institute of Technology (MIT). Historically, it has been a wellspring of hacker culture and the oldest such hacking group in North America. Formed in 1946, its HO scale layout specializes in the automated operation of model trains.