In the countryside of Loiret, France, a high-speed rail viaduct built in the 1960s still stands, though it has never carried a single commercial passenger. This structure, made up of 900 concrete pillars, was constructed between 1967 and 1969 as part of the Aérotrain project, an ambitious attempt to develop a new kind of transport system using air cushion technology. The viaduct spans 18 kilometers between the towns of Saran and Ruan, and was meant to be part of a future railway line connecting Paris to Orléans. Despite its completion, the project never moved forward commercially. On March 5, 1974, a prototype called I80-HV set a world speed record of 430.4 km/h (267.5 mph) on this track, nearly five years before the first TGV (Train à Grande Vitesse) began commercial service. This achievement highlighted the potential of the Aérotrain project, which was developed by engineer Jean Bertin in the 1960s. The system involved a vehicle that glided on an air cushion, moving along a single rail shaped like an inverted T. This innovative design was meant to allow for high speeds with minimal friction. Despite the success of the prototype, the French government decided in 1977 to stop funding the Aérotrain project and instead support the TGV, which was considered more compatible with the existing railway network. The viaduct was officially decommissioned that year, and the infrastructure has remained largely abandoned since then. In 2007, a 120-meter section of the viaduct was destroyed to make way for the A19 highway, but the rest of the structure remains untouched. The decline of the Aérotrain project was further marked by the destruction of its prototypes. The I80 vehicle, stored in a hangar in Chevilly, was destroyed in a fire on March 22, 1992, which was later determined to be of criminal origin. The two main Aérotrain prototypes were also destroyed in suspicious fires, adding to the tragic history of the project. Today, the viaduct remains a silent monument to an abandoned technological ambition. With its 900 pillars, it stretches across the Beauce region, where the fields have regained their golden hues after the summer harvests. Although no one maintains the structure, no one is willing to completely dismantle it either. Curious hikers can still see the aligned pillars disappearing into the horizon, raising questions about whether this viaduct should be seen as a failure of a technological dream or a rare testament to industrial boldness.