Located in the Atlantic ocean just west of Ireland, the mysterious island of Hy-Brasil is documented on maps as early as 1325 and as late as 1872. Although Hy-Brasil is found on many ancient maps, no island exists in our modern day and no recorded historical documents indicate where or what happened to it. The mystery of Hy-Brasil is that it simply disappeared without a trace.
Plato described Atlantis as a island nation existing in the middle of the Atlantic Ocean. It was said to be populated by a great a powerful race and was a center for trade and commerce during that era. The sheer scale of everything he said about Atlantis, from the grandeur of its buildings tot he enormous timescale involved, have provided a controversial debate that has extended for over 10,000 years.