The first and second modules are detailed in this OGR thread: https://ogrforum.com/...odular-subway-layout
This third module is going to be a bit of a fantasy layout: underground, a rendition of a station on the first IRT subway line on the Upper West Side of Manhattan; above, a rendition of Old San Juan. So, a combination of two of my favorite things. 😃
Photos to come as soon as I figure out why my new A32 Galaxy phone is not letting me upload photos to the OGR site. 🤔