The Vehicle Assembly Building (VAB)is a huge cubic structure with a round shield and blue NASA letters beside the American flag. In the Kennedy Space Center Tour, in the Kennedy Space Center, you can take a tour of the facility and this is included in the price. Once underway it begins to emit a series of informative videos on LCD screens bus. You can walk past the building where they join, repair and prepare the space shuttle for space travel. They can't stop for your visit. The building is the largest NASA building in Florida and can be seen from several kilometers away.