Asia is the world's largest continent. It is also a continent of extremes containing the world highest point mount Everest as well as its lowest, the Dead Sea. while, Asia's largest country, the Russian Federation, extends into Europe; Asia has many great rivers, including the Huang. Asia has every kind of climate and landscape. Asia has mostly dense forest and most of the regions are mountainous. Asia is the world's largest continent and the birthplace of the world's earliest civilizations, such as, those of the Sumerians, china, and India. Buddhism [founded by Siddhartha Gautama Buddha and one of the three religion of china]; spread over Asia. The snow-capped Himalaya, mountain is the highest range in the world, forms a massive national barrier between the Indian sub continent and northern Asia.