Russian Список самых длинных тоннелей мира Cited by user Dima st bk on 07 Dec 2021 Большинство самых больших и длинных тоннелей в мире используется для водоснабжения или в транспортных целях (автомобильные и железнодорожные тоннели).
English List of longest tunnels Cited by user The Voidwalker on 06 Dec 2016 This list of longest tunnels in the world ranks tunnels that are at least long. Only continuous tunnels are included; pipelines (also buried) are excluded.
English List of longest tunnels in the world Cited by user Dthomsen8 on 01 Feb 2016 This list of longest tunnels in the world ranks tunnels that are at least long. Only continuous tunnels are included, pipelines (also buried) are excluded.