Elon Musk unveils his Boring Company's first-ever tunnel
Billionaire entrepreneur Elon Musk on Tuesday unveiled the first underground transportation tunnel dug in Los Angeles by The Boring Company, a subsidiary of his space startup SpaceX. The over 1.83-km-long tunnel, featuring car elevators, was built for around $10 million, Musk said. "Capable of travelling safely at over 150mph... it'll feel like teleporting within a city," he tweeted. 