Conspiracy theorists have spent years trying to discover the fictional metropolis, which was first written about by philosopher Plato.
Some believe it was a real place and was once the ruling power of the world before a natural disaster sank the entire island into the sea.
Here, Daily Star Online reveals some of the most baffling clips to have surfaced online claiming to prove the city’s existence, using mapping software Google Earth.
‘Submerged city’ found off coast of Spain
The internet was sent into a frenzy back in 2011 when footage appeared to show the outline of an ancient settlement – in the middle of the ocean.
The image – taken off the Portuguese island range of the Azores – appeared to show a square shape filled with perfectly straight lines inside.
More than 4.4 million people watched the “evidence” that was posted to YouTube with the caption: “Atlantis found on Google Earth – giant city!”
Users were quick to comment on what it could be, with some saying it should be “investigated” while another claimed it could be another ancient city.
But many other viewers pointed out that Plato described Atlantis as being circular, not square.
Giant 413 mile-wide 'land mass' found underneath Azores
After the previous footage emerged, renowned UFO hunter Blake Cousins delved further to discover that the actual Azores island range was sitting on a huge land mass in the ocean.
Using Google Earth, Blake measured this to be 413 miles wide which, he claimed, was similar to the size Plato described.
He then looked over the islands themselves and discovered a number of circular lakes and mountain ranges.
“In my opinion, the Google Earth evidence is quite clear and astonishing,” Blake said.
“These rings within rings within rings is exactly how Plato described and the whole geography is about as wide as Plato describes.”
Mysterious dome shape spotted in Antarctica
The frozen continent has always been a hive for mysterious sightings over the years, as Daily Star Online recently showed.
Some believe its snow-covered surface is hiding something beneath it and that may have been shown with the sighting of a dome-shaped object.
The image shows what appears to be a dome surrounded by cell-like squares.
It bears a resemblance to ancient settlements found all over the world in recent years and some even suggested it could be Atlantis.
But others pointed out that it measured just 160 metres in length – hardly the size of a palace let alone an ancient superpower.