A group of fee-paying adventurers travel to the bottom of the ocean in an innovative submersible hoping to explore the world's most famous wreck, the Titanic. Part 1 of 2. Show more
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A group of fee-paying adventurers travel to the bottom of the ocean in an innovative submersible hoping to explore the world's most famous wreck, the Titanic. Part 1 of 2. Show more
BBC World News
