For an idea of how large Launch Vehicles are: the NASA Crawler-Transporter was the largest land vehicle in the world (until the creation of the Bagger 288[0])

For an idea of how large Launch Vehicles are: the NASA Crawler-Transporter was the largest land vehicle in the world (until the creation of the Bagger 288[0]) [0]: http://en.wikipedia.org/wiki/Bagger_288 http://en.wikipedia.org/wiki/Bagger_288