Drain the Titanic: A Ship Reborn

For more than a century, the RMS Titanic has been hidden in darkness two and a half miles under the Atlantic Ocean -- until now. Using cutting-edge technology, scientists drain the ocean and reveal Titanic as she hasn't been seen since her fateful maiden voyage in 1912. They tackle the long-standing mysteries of the disaster and uncover critical new evidence that could rewrite Titanic's story. (National Geographic)