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- Lötschberg Railway | Lüegilkin Viaduct
- Lötschberg Railway | Lüegilkin Viaduct
- Lötschberg Base Tunnel | Southern entrance
- Brig | Simplon Tunnel
- Brig | Simplon Tunnel
- Aosta Valley with Leverogne and Arvier
- Col du Galibier | Tunnel du Galibier
- Semmering Railway and Rax
- Semmering Railway | Krauselklause Viaduct
- Semmering Railway | Krauselklause Viaduct