Please, take this with the uttermost grain of salt, but it was too good not to share. We all knwow hat Atlantis is, right? Atlantis is the (fictional?) island first described by Plato in his texts Timaeus and Critias, said to be an antagonist naval power that besieged Ancient Athens. In the story, Athens repels the Atlantean attack unlike any other nation of the known world, supposedly giving testament to the superiority of ancient Greece. The story concludes with Atlantis falling out of favour with the deities and submerging into the Atlantic Ocean.

In two YouTube video posted on his channel Ancient Architects, the expert claimed that Rockall is the most likely location for Atlantis and there are clear and obvious manmade features that leave no doubt of a lost ancient civilisation.

"The description of Atlantis should be our starting position when looking for it. First of all, to simplify his words, Plato says that beyond the Straits of Gibraltar, in the Atlantic Ocean is an island as big as Libya and Asia put together. From this island, you could pass to yet more islands before ending up at the opposite continents that surround the Atlantic Ocean. The opposite continent has to be the Americans, it is on the opposite side of the Atlantic Ocean and therefore this piece of information must rule out the Americas as a possible location. 

With this in mind, geologically speaking, there is no huge sunken supercontinent within the Atlantic Ocean, between the Strait of Gibraltar and the Americas that match the description. Therefore, in my opinion, Plato, or whoever this piece of information came from, was exaggerating the size for political reasons. If any specific place fits Plato’s words, I would say that this area is Rockall. For a start, Plato is explicit that Atlantis isn’t a city, but an island, that leads to other islands, then to the enormous opposite continent, which can only be the Americas. The other islands he refers to must be situated between the Americas and sunken continental landmass of Atlantis, close to Europe and Africa as Plato says it is outside of the Pillars of Hercules."

Mr Sibson went on to identify Rockall, an uninhabited granite islet off the coast of the UK, as a possible candidate.

"The only sizeable piece of continental crust under the sea our side of the Pillars of Hercules is Rockall. Furthermore, you can island hop from Rockall to the Americas via Iceland and Greenland. Plato goes on to say that a wonderful empire had arisen in Atlantis, which had rule over the island, as well as many others. I would suggest that the islands that belonged to Atlantis were the ones that connected it to the Americas. Plato says there was a time of extraordinary earthquakes and inundations, and in one terrible storm the warriors of Atlantis were swallowed and Atlantis likewise sank into the sea and vanished. He says this is why the ocean in this part can not be navigated or explored, owing to the great depth of mud caused by the subsiding of the island."

Mr Sibson explained why geological activity near Rockall may have caused it to fall into the Atlantic.

"It is still the case that the sea is too shallow to sail over, with numerous ships in history caught in the rocks. This part of the northern Atlantic has quite a complex geological history and there is clear evidence that Rockall was torn apart through numerous faults. The highly faulted Atlantic Ocean would have been forced into moving geologically both vertically and horizontally, leading to increasing volcanic activity and major water displacement in the form of tsunamis. Interestingly, the northernmost part of the ridge looks somewhat different to the main rift valley, in that there is one enormous fault zone in the ocean crust."