We have a large one down in San Diego at Balboa Park. Similar to this one, but it's 27,000 sq ft, several layouts. San Diego Model Railroad Museum https://www

We have a large one down in San Diego at Balboa Park. Similar to this one, but it's 27,000 sq ft, several layouts. San Diego Model Railroad Museum https://www.sdmrm.org https://www.sdmrm.org As an aside, the California State Railroad Museum in Sacramento is a real treasure. And, going with the "railroad", "silicon valley", and "niche museums" themes here, the original Golden Spike from the Transcontinental Railroad ceremony can be seen at the Cantor Arts Center at Stanford University.