The Mobile Launcher Platform as well as the Saturn V and the Space Shuttle were assembled at this NASA facility.
Mobile Launcher Platform: The Mobile Launcher Platform (MLP) is one of three two-story structures used by NASA at the Kennedy Space Center to support the Space Shuttle stack throughout the build-up and launch process: during assembly at the Vehicle Assembly Building (VAB), while being transported to Launch Pads 39A and B, and as the vehicle's launch platform. Vehicle Assembly Building: The Vehicle (originally Vertical) Assembly Building, or VAB, at NASA's Kennedy Space Center (KSC) is a building designed to assemble large space vehicles, such as the massive Saturn V and the Space Shuttle.
Vehicle Assembly Building