Elon Musk is building a massive Tesla Gigafactory that's expected to be completed in 2020. When finished, it'll be the world's second-largest building by volume — three times the size of New York's Central Park.
While there have been drone videos of the factory's exterior, photographers haven't been allowed inside the Gigafactory.
Image: Tesla Motors - The Tesla Gigafactory, which will be completed in 2020.
