A mysterious, circular structure, with a diameter greater than the length of a Boeing 747 jet, has been discovered submerged about 30 feet (9 meters) underneath the Sea of Galilee in Israel.
Scientists first made the discovery by accident in 2003 using sonar to survey the bottom of the lake but published their findings only recently.
Scientists consulted a couple of archaeologists who said it looked like an unusually large Bronze Age statue.
The structure is comprised of basalt rocks, arranged in the shape of a cone. It measures 230 feet (70 meters) at the base of the structure, is 32 feet (10 meters) tall, and weighs an estimated 60,000 tons. It is twice the size of the ancient stone circle at Stonehenge in England.
From Live Science:
Putting all the data together researchers found that the structure is cone shaped, about 230 feet (70 meters) in diameter and nearly 32 feet (10 meters) tall. It weighs an estimated 60,000 tons.
To put the structure's weight into perspective consider this - at 60,000 tons it is heavier than most modern day warships. In fact it weighs about the same as the ship shown above - the now retired battleship USS New Jersey.