When I was about 8 years old, a friend's Dad had a model railway set up in their shed. It was nothing compared to this huge layout of the Diablo Valley Lines (imaginary railroad company) at Walnut Creek Model Railroad Society.
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Much more at Giant Model Railroad Is an Analog SimCity | Raw File | Wired.com
Much more at Giant Model Railroad Is an Analog SimCity | Raw File | Wired.com