With her rudder cleaving the sand and two propeller blades peeking from the murk, Titanic's mangled stern rests on the abyssal plain, 1,970 feet south of the more photographed bow. This optical mosaic combines 300 high-resolution images taken on a 2010 expedition. (© 2012 RMS TITANIC, INC; Produced by AIVL, Woods Hole Oceanographic Institute)