20 of the Biggest, Baddest Boring Machines (the Right Kind of Boring)

Sometimes, you just need a huge fucking hole dug. Enter the world's most interesting boring machines—all big enough to Chunnel their way under vast bodies of water, massive gem mines, that kind of thing. Huge well-ventilated rotating digging heads are the name of the game here—good to ogle from the safety of the… » 10/01/08 6:00pm 10/01/08 6:00pm