Ecuador, named after the Earth's equator which passes through it, is located on the northwestern coast of South America. Its capital, Quito, is the second-highest administrative capital in the world and is built on the foundations of an ancient Inca city. The country's geography is defined by the Andes Mountains, which run through the center, the Pacific coastal lowlands to the west, and the Amazon basin to the east. Mount Chimborazo, an inactive volcano in the Andes, has a unique distinction: because of the equatorial bulge, its peak is the point on Earth's surface that is closest to the sun and farthest from the Earth's center. Ecuador also owns the Galápagos Islands, a volcanic archipelago famous for its vast number of endemic species, which served as the primary inspiration for Charles Darwin's theory of evolution. The country is a major exporter of oil and agricultural products, particularly bananas.