Here's an awe inspiring layout called the Muskrat Ramble Railroad. Its an On30 scale exhibition railroad shown at the Narrow Gauge Convention in Sydney, Australia and has been featured in at least two issues of Narrow Gauge and Short Line Gazette and surely in other publications.
The layout is set in the Louisiana Swamps 1925. This building was based on a Walker Evans photograph.
More pictures of the Muskrat Ramble Railroad here.