Earth (1 AU from the Sun) is the largest and densest of the inner planets, the only one known to have current geological activity, and the only place where life is known to exist. Its liquid hydrosphere is unique among the terrestrial planets, and it is the only planet where plate tectonics has been observed.
Wikia is a free-to-use site that makes money from advertising. The Titan of Braavos. Braavos is one of the Free Cities that lies along the western shores of the continent of Essos, across the Narrow Sea from Westeros.
South America is the fourth largest continent. It has 12 countries and 3 major territories. South America has the world's largest river system (The Amazon). Antarctica is the fifth largest of the seven continents.frica is the second largest continent in the world and has 53 countries. Africa has the world's longest river (The Nile) and world's largest desert (The Sahara). The population of Asia ranks third, behind Asia and Europe.