The Atlantic Ocean was an Earth ocean that bordered North America, South America, Europe and Africa.
Circa 400,000,000 BC, the area of Earth that would later become the middle of the Atlantic was a vast, rocky wasteland. (TV: City of Death)
While crossing the Atlantic in 1872, the Mary Celeste encountered first the First Doctor and the TARDIS and then the Daleks. The crew abandoned ship to escape the latter. The mysteriously abandoned ship passed into legend. (TV: The Chase)
In 1912, the RMS Titanic was crossing the Atlantic when it famously hit an iceberg and sank. (PROSE: The Left-Handed Hummingbird)
In 1915, during World War I, the Doctor's TARDIS materialised on a ship crossing the Atlantic which was shortly hit by a German torpedo and sank. (AUDIO: The Sirens of Time)
The Doctor's TARDIS landed on the Queen Mary in 1963. (PROSE: Ghost Ship)