European Space Agency
The satellite test has focused on the highest bridge in the world. This bridge is the Millau viaduct, built in the Tarn valley of the Massif Central of France, on the road that links Paris with the Mediterranean. It runs 270 meters above the Tarn River and has a length of 2,460 meters. They have been built in steel and only with the steel they have used to build the top of the bridge could be built four Eiffel towers.