Right, it's DONE 💪

Every railway border between
All 🇪🇺 countries
🇳🇴
🇨🇭
🇬🇧
🇱🇮
🇸🇲
🇻🇦
🇺🇦
🇲🇩
🇷🇸
🇧🇦
🇲🇰
🇽🇰
🇦🇱
🇲🇪
now mapped...

Inc. existing lines with passenger trains, lines without passenger trains, and derelict lines too. Even tramways and narrow gauge are mapped

Here's the Zoom-able version
https://umap.openstreetmap.fr/en/map/crossborderrail-all-the-borders_838780#5/52.999/7.747

Now tell me what I am missing, and where I ought to go next 😊

Grey icons are the places I have not been!