The Millau Viaduct (French: le Viaduc de Millau) is a large cable-stayed road-bridge that spans the valley of the River Tarn near Millau in southern France. Designed by English architect Norman Foster and French bridge engineer Michel Virlogeux, it is the tallest vehicular bridge in the world, with one mast's summit at 343 metres slightly taller than the Eiffel Tower and only 38 m shorter than the Empire State Building. The viaduct is part of the A75-A71 autoroute axis from Paris to Béziers. It was formally dedicated on 14 December 2004 and opened to traffic two days later. The bridge's construction broke three world records: * The highest pylons in the world: pylons P2 and P3, 244.96 and 221.05 metres in height respectively; * The highest mast in the world: the mast atop pylon P2 peaks at 343 m. * The highest road bridge deck in the world, 270 m above the Tarn River at its highest point.