Elon Musk's SpaceX factory tour (Hawthorne, 2010)

Elon Musk walks visitors through the SpaceX headquarters in Hawthorne, California — the 500,000 sq ft former Boeing 747 plant where SpaceX designs and builds about 80% of the Falcon line. Filmed in 2010, just weeks before Dragon became the first privately built spacecraft to orbit and return; this walkthrough of the offices and factory floor is the tour widely associated with Musk showing young founders around the plant.