Ligne de Sceaux
The Ligne de Sceaux (French pronunciation: [liɲ də so], Sceaux Line) was a railway line in France running from Paris, which initially linked the Place Denfert-Rochereau (then called the Place d'Enfer, in Paris, to the town of Sceaux. The line originally opened in 1846 as a broad gauge line to demonstrate the Arnoux system and was extended to the south to Sceaux.