In a recent discovery, a sky scrapper-sized coral found in Australia's Great Barier Reef stands to be taller than the size of the Empire Building, US.
Rising about 550 yards in the Great Barrier Reef, it's the first to be discovered in more than a century.
The detached reef - the first one discovered in over 120 years - is more than 1,600 feet high, meaning it towers over the Empire State Building in New York City, Sydney's Sydney Tower and the Petronas Twin Towers in Kuala Lumpur, according to the Schmidt Ocean Institute.
After the discovery, researchers had to use an underwater robot, which is known as "SuBastian" to collect samples for identification.
"This unexpected discovery confirms that we are continuing to find unknown structures and new species in our surroundings", Wendy Schmidt of the Schmidt Oceanic Institute He said in a statement.
Researchers from James Cook University found coral reefs while mapping the Northern Great Barrier Reef. "This powerful combination of underwater map data and imagery will be used to understand these new coral reefs and their role within the magnificent World Heritage Area of the Great Barrier Reef". Because of the new technology that works our eyes, our ears and our hands in the deep ocean, we have the ability to explore like never before.
Equipped with robotic arms and a camera, it took coral from the reef for scientific inspection, livestreaming its exploration on YouTube.
The detached reef measures about 1,600 feet which would be taller than some of the world's tallest skyscrapers.
"To not only 3D map the reef in detail, but also visually see this discovery with SuBastian is incredible", Dr Beaman said.
Scientists discovered this coral reef while conducting underwater mapping of the northern Great Barrier Reef seafloor. In April, scientists discovered the longest recorded marine animal - a 45-meter-long siphonophore in Ningaloo Canyon, as well as up to 30 new species.
Further south they found deep-sea coral gardens and graveyards in Bremer Canyon Marine Park, off WA's southern coast.
'To find a new half-a-kilometre tall reef in the offshore Cape York area of the well-recognised Great Barrier Reef shows how mysterious the world is just beyond our coastline, ' said Schmidt Ocean Institute executive director Jyotika Virmani. "New oceanscapes are opening to us, revealing the ecosystems and various life varieties that share the planet with us". The maps developed from the voyage will be available through AusSeabed, a national Australian seabed mapping program, and will contribute to the Nippon Foundation GEBCO Seabed 2030 Project.