This is one of the shortest subways in the world: U-Bahn Serfaus!

I rode the U-Bahn in Serfaus, Austria. This line is among the shortest underground train lines in the world, and is quite a unique line! Works Cited: ABR Team. “Shortest subway in the world.” Asia Book of Records, Asia Book of Records, 14 June 2024, https://www.asiabookofrecords.com/sho.... Accessed 30 July 2026. “Alle Infos zu Saison.” Serfaus Fiss Ladis, Tourismusverband Serfaus-Fiss-Ladis, 2026, https://www.serfaus-fiss-ladis.at/de/.... Accessed 30 July 2026. Azéma, Michel. “Dorfbahn Serfaus.” Funimag, Michel Azéma, 1998, https://www.funimag.com/funimag13/ser.... Accessed 31 July 2026. Dunkle, Lily Nguyen. “Blessing at the Chesapeake Bay Bridge-Tunnel.” The Catholic Virginian [Richmond], 14 February 2023, https://catholicvirginian.org/news/bl.... Accessed 31 July 2026. “Honoring Saint Barbara today - The Patron Saint of Tunnellers and Miners.” iPS Powerful People, 4 December 2025, https://ipspowerfulpeople.com/project.... Accessed 31 July 2026. Serfaus, Austria. Google Maps, 30 July 2026. maps.google.com “Sommerstatus & interaktive Karten.” Serfaus Fiss Ladis, Tourismusverband Serfaus-Fiss-Ladis, 2026, https://www.serfaus-fiss-ladis.at/de/.... Accessed 4 August 2026. Stagnaro, Angelo. “St. Barbara — the Patron Saint of Things That Go Boom.” National Catholic Register, 1 July 2022, https://www.ncregister.com/blog/st-ba.... Accessed 31 July 2026. Stone, Gavin. “HRBT’s 2nd tunnel nears completion as project remains on schedule, within budget.” The Virginian-Pilot [Newport News], 16 June 2025, https://www.yahoo.com/news/articles/h.... Accessed 31 July 2026. “U-Bahn Serfaus.” Serfaus Fiss Ladis, Tourismusverband Serfaus-Fiss-Ladis, 2026, https://www.serfaus-fiss-ladis.at/de/.... Accessed 31 July 2026. Wikipedia Contributors. “Carmelit.” Wikipedia, Wikimedia Foundation, 1 January 2026, https://en.wikipedia.org/wiki/Carmelit. Accessed 30 July 2026. Wikipedia Contributors. “Hovertrain.” Wikipedia, Wikimedia Foundation, 11 June 2026, https://en.wikipedia.org/wiki/Hovertrain. Accessed 31 July 2026. Wikipedia Contributors. “Serfaus.” Wikipedia, Wikimedia Foundation, 20 October 2025, https://en.wikipedia.org/wiki/Serfaus. Accessed 30 July 2026. Wikipedia Contributors. “Tünel.” Wikipedia, Wikimedia Foundation, 3 May 2026, https://en.wikipedia.org/wiki/T%C3%BCnel. Accessed 30 July 2026. Wikipedia Contributors. “U-Bahn Serfaus.” Wikipedia, Wikimedia Foundation, 27 June 2026, https://en.wikipedia.org/wiki/U-Bahn_.... Accessed 30 July 2026. Wikipedia Contributors. “U-Bahn Serfaus.” Wikipedia, Wikimedia Foundation, 8 August 2025, https://de.wikipedia.org/wiki/U-Bahn_.... Accessed 30 July 2026. Music used: "Original Rags" (1899) by Scott Joplin, arr. Charles N. Daniels