Could the lost city of Atlantis actually have existed?

In January 2015 marine archaeologist investigating a two and a half thousand-year-old wreck off the coast of Sicily made a curious discovery. 

Buried amongst other artefacts they found ingots of a strange red metal which archeologist, Professor Sebastiano Tusa, claims is the mythical metal Orichalcum believed to have been mined on the Island on Atlantis.

Although many have written and theorised about Atlantis over the years this isn't the first evidence found which suggests it may be more than legend.

This fascinating video from All-Time Conspiracies presents the many theories of the city, it's people and their possible fate.