A major landmass is a large area of land that is distinct from other landmasses. The term 'major landmass' typically refers to the seven continents of the world, which are Africa, Antarctica, ASIA, Australia, Europe, North America, and South America. ASIA is the largest of these continents, covering an area of 17, 212, 000 square miles. It is home to over 4 billion people, making it the most populous continent in the world.