18055, SW Seiffert Road is a huge four bed detached house currently for sale in Sherwood, Oregon for around $3,500,000.
The house itself is largely irrelevant, given that it’s surrounded by a masterfully enginered, elaborate miniature railway system featuring a trestle bridge, tunnel and train warehouse.
A separate barn contains a railway museum.
Current owner Tom Miller, who buiilt all the miniature trains, sez:
…it is time to let someone else take stewardship of what I have created. I intend to keep my locomotives and run them at club railroads around the country unless the new owner insists they go with the property. After all they are just stuff and I could build other and different locomotives.