The Millau Viaduct is a cable-stayed bridge that spans the gorge valley of the Tarn near Millau in Southern France. In an Anglo-French partnership, it was designed by the French structural engineer Michel Virlogeux and English architect Norman Foster. As of November 2018, it is the tallest bridge in the world, having a structural height of 336.4 metres (1,104 ft). However, this bridge still holds the record of the tallest bridge pillar in the world.
The bridge is built at the bottom of the valley. The highest point of the bridge, from the foot of the tallest pillar P2 to the head of the cable-stayed pillar is 343m.
It is also the tallest structure in France, taller than the Eiffel Tower. It is so high that the bridge is hovering above the clouds in the valley Tarn, with 2.5 km wide and 250 m deep. Wind speed over the bridge can be up to over 200 km/h.
The cost of construction was approximately € 394 million. It was built over three years, formally inaugurated on 14 December 2004, and opened to traffic two days later on 16 December. The bridge has been consistently ranked as one of the great engineering achievements of all time, and received the 2006 Outstanding Structure Award from the International Association for Bridge and Structural Engineering.
According to en.wikipedia