Maps and diagrams that trace rail lines, stations and routes—often rendered in vintage cartography, modern transit schematics, or stylized illustrated maps. Expect linear patterns, repeating icons (tracks, trains, bridges), color-coded routes, station names and geographic landmarks. Mood ranges from nostalgic and cozy to graphic and functional, with lots of edge pieces, curves and tiny text for detail lovers. Great for puzzlers who enjoy structure, navigation puzzles, and discovering hidden tidbits or historic charm.
