The submarine aboard Silicon Valley venture capitalist Tom Perkins' Dr. No is capable of diving to nearly 1,000 feet, according to Boat International -- one of the deepest diving private subs around. He's said to have used it to follow humpback whales diving to the ocean bed -- a feat no human had done before.

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The entire boat is geared around housing this toy -- it's a converted Japanese fishing vessel that was chosen for the onboard crane and ample storage.

Don't let its working past fool you though: the interior has been sumptuously renovated.