They’re calling it the Brazilian Atlantis.
A Japanese submarine captured video of what looks like a giant mass of rock, possibly granite off the coast of the country.
It’s believed it could be part of a lost continent left after South America and Africa broke apart millions of years ago.
The area is called the Rio Grande Rise seabed and it’s over 600 miles southeast of Rio de Janeiro and 3,000 feet underwater. The granite was found there and researchers say “you don't find granite on the seabed."
Granite only forms on land and the same goes for quartz which was also found on the ocean floor.
One Brazilian official noted "this could be the Brazilian Atlantis."
He told the Global Post and AFP “if it is the case that we find a continent in the middle of the ocean, it will be a very big discovery that could have various implications in relation to the extension of the continental shelf."
The depth makes working there tricky but scientists hope to recover pieces of the granite sometime in 2013 to see it if matches rock from Africa or South America.