Building bridges in France, especially the Garabit Viaduct, helped Gustave Eiffel become famous.

His preferred line of work was bridging, especially railroad bridges, however, he also achieved fame for his metal structural work and industrial structures. The twin structures of the Porto viaduct and the Garabit bridge in the French Cantal area are two of the most notable among the many beautiful buildings that he designed throughout his career.

He contributed to several renowned structures around the nation, with the spectacular Garabit Viaduct in the French Cantal region of Ruynes-en-Margeride being one of his most notable accomplishments. It was regarded as the world's tallest bridge at the time. The fact that this bridge helped Gustave Eiffel become well-known and one of the nation's leading architects is one of the interesting facts about Gustave Eiffel.

On the route from Marvejols to Neussargues, this bridge, which spans the Truyère valley, is 564 meters long and 122 meters high. It is supported by five piers, the largest of which rises to a height of 89.64 meters. With a spire of 56.86 meters and a chord of 165 meters, the central arch is a parabolic archThis enormous edifice is the biggest ever constructed in France due to its size (3,254 tonnes). It was constructed using consecutive cantilevers, the same as the one in Porto.