The opening of the international Somport railway Historical milestone · Canfranc, La Jacetania, Huesca Image of Canfranc, not of the place itself. Alfonso XIII and the French president Gaston Doumergue inaugurated in 1928 at Los Arañones the line that linked Zaragoza with Pau through the Somport tunnel, after almost half a century of works and negotiations between the two countries. 18 de julio de 1928 Photo: ERGOGAR (CC BY-SA 4.0) What to see and do in Canfranc