Ball Pyramid - the world’s tallest sea stack. It is the remains of a shield volcano formed about 7 million years ago, located southeast of Lord Howe Island in the Pacific Ocean. Ball's Pyramid is part of the Lord Howe Island Marine Park in Australia.
World in Reflection: A ribbon of clear blue ice runs through an iceberg and is reflected in the sea. West Greenland Arctic landscape picture galleries by Bryan Cherry Alexander Photography. Arctic and Antarctic photography experts.