Line C (Ligne C) of the Lyon Metro is the modern incarnation of an old cable-hauled railway operating on part of the current alignment. In 1891, the Funiculaire Croix-Rousse - Croix-Paquet (Croix-Rousse - Croix-Paquet Funicular) was opened, running between its namesake stations. After surviving the closure of the nearby funiculaire Rue Terme - Croix-Rousse in 1967, this Croix-Rousse - Croix-Paquet funicular closed in 1972 for refurbishment, reopening for service in 1974 (four years before the Lyon Metro even opened). When it was integrated with the metro as Lyon Metro Line C in 1978, the line's southern end was extended from Croix-Paquet to Hôtel-de-Ville (City Hall). A further extension of Line C opened on December 8, 1984, when its northern end was extended from Croix-Rousse to Cuire. The line currently serves 5 stations, and is 2.4 kilometres (1.5 mi) long.
The line was constructed using various methods: a steep incline rising from a deep tunnel to an exposed trench, the level segment at Croix-Rousse using cut-and-cover, and the section beyond Hénon running on the surface. Croix Paquet station claims to be the steepest metro station in the world, with an incline of 17%. The repurposed alignment of the original funicular from Croix-Paquet to Croix-Rousse is among the world's oldest structures currently used by metro trains, having first opened in 1891.