The term 'Great Landmass' can be solved by the word 'ASIA', which is a continent located in the Eastern Hemisphere. It is the world's largest and most populous continent, covering an area of 17, 212, 000 square miles and home to over 4.5 billion people. ASIA is home to some of the world's oldest civilizations, including China, India, and Japan. It is also home to some of the world's most iconic landmarks, such as the Taj Mahal and the Great Wall of China.