World largest door in the world

world largest door in the world is owned by nasa these door are taller then statu of libertry ,nasa VAB world largest building in the world it completed in 1966 and that building build in 8 acre area and VAB has 4 doors and that doors are world biggest door in the world and each door to 40 min to open and 40 min to close VAB building is too large and it has its own weather