It says he was working "on the skyscrapers and other scenery". For model railroads and other diorama work, those are usually made separately and then added to t

It says he was working "on the skyscrapers and other scenery". For model railroads and other diorama work, those are usually made separately and then added to the layout. He was just having a room set up with a desk and area to build those smaller components, then would take them home and add them to the layout.