The Wreck

The Titanic was almost forgotten in the hard years of the Great Depression, and remained so until the publishing of Walter Lord's A Night to Remember in 1955. With this book and a British movie based on his book, the public's obsession with the Titanic was back in full swing. Many other plans were produced; several of which came from the fertile mind of Douglas Woolley, an English hosiery worker.

The expedition that would ultimately find the Titanic started out as a joint French - American venture.Employing the American's advanced video camera system, capable of operating in near darkness. Concentrating on the twenty percent not covered by the Le Suroit, the Knorr employed a search grid known as "mowing the lawn", the same plan used by the French. "Mowing the lawn" consisted of moving back and forth along the search grid, turning 180° upon reaching the end of the search grid, clearing out the 400 square mile grid in three fifths of a mile strips for the side-scanning sonar, a smaller area for the   cameras.
Courtesy of NOAA/Institute for Exploration/University of Rhode Island (NOAA/IFE/URI)
Source: Wikimedia Commons
 
Team leader Robert D. Ballard, a geologist, knew that if they could find the debris field, they would almost certainly find the hulk of the Titanic. Argo, a deep-sea submersible carrying strobe lights along with the ultrasensitive cameras was lowered into the sea and began the search. After 14 thouroghly boring days of searching, on September 1, 1985 at 5:01AM, one of Titanic's huge boilers came into view. Moments later, port holes, bits of hull, and steel railing were seen. The next day, Argo was sent down again, where it found the Titanic in her final resting place.
Source: Wikmedia Commons