1850s, with the birth of the passion for alpinism all over the Alps; in fact many mountain climbers saw the Matterhorn as one of the greatest challenges, so the construction of some bases became necessary. Some examples are the first Refuge du Théodule (in Italian Rifugio Teodulo, built in 1852) at 3317 m (10882.6 ft), the Jumeaux Hotel and Hotel du Cervin.