section
Metro
Quizzes about metro stations. The maps are drawn from open data — not copies of official maps, but our own, readable on a phone.
In progress
Why a separate section
Metro is not pure geography: lines, transfers and station order matter. So this section will get its own maps and a different way to play: type a station, it lights up on the map, and the lines provide context.
Data: OpenStreetMap (ODbL); maps are generated from coordinates and route relations. Official metro maps are copyrighted, so we do not copy them: line colours and station names are facts, the layout and graphics are ours.