It took 88 years after the sinking of the Titanic for this photograph, taken by Stephan Rehorek on board the German steamer Bremen, to be made public. Many believe it to be the actual iceberg that sank the legendary ship. The Breman sailed into the disaster area on April 20th - discovering this iceberg, as well as wreckage and bodies. Unlike other suspected icebergs, this one not only has damage on the correct side consistent with an collision, but also matches the "Rock of Gibraltar" description by Scarrott.
More information on this iceberg can be found here.