There's a 'Lost City' Deep in The Ocean

Close to the summit of an underwater mountain west of the Mid-Atlantic Ridge, a jagged landscape of towers rises from the gloom.
Their creamy carbonate walls and columns appear ghostly blue in the light of a remotely operated vehicle sent to explore.
They range in height from tiny stacks the size of toadstools to a grand monolith standing 60 meters (nearly 200 feet) tall. This is the Lost City.
There's a 'Lost City' Deep in The Ocean, And It's Unlike Anything We've Ever Seen