Seamount twice the size of world's tallest building discovered 'hidden under the waves'

Ocean explorers mapping the seabed off the coast of Guatemala have discovered a mountain twice as high as the Burj Khalifa, the world's tallest building, hiding deep beneath the waves.
The 5,250-foot-tall (1,600 meters) formation is a seamount — a large, underwater geological feature typically formed from an extinct volcano. Scientists discovered the cone-shaped seamount 7,870 feet (2,400 m) below sea level during an expedition organized by the Schmidt Ocean Institute this summer, according to a statement shared with Live Science.
Seamounts provide crucial rocky habitats for deep-sea corals, sponges and a host of invertebrates, as hard substrate can be difficult to come by in the ocean, with the majority of the seabed covered in loose, muddy sediment.