- Riddle
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51.524966, -0.113597 (OpenStreetMap, Google Maps, Yandex Maps)
- You can’t find this underground line on the official map. Until 2017, you were not even able to ride it. Now you can enter it from only one station. Gate across the road from the station entrance.
- Last line of the Security Warning placard
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www.nsl247.com
Present in routes of categories Sphinx, Lion-Mini
Passed by: 24/34 (71%).
By categories:
- Lion-Mini: 7/12 (58%)
- Sphinx: 17/22 (77%)