Titicaca Lake is the biggest lake in South America. It is located between the Andes Mountains` tops. Lake`s property used to belong to Madrid, owner of an outpost there, but currently, there is a town there too (Machu Picchu). The lake is rounded by stone and hardened clay mountains, and there is a dessert near of it. A bridge built by Machu Picchu crosses the lake (Inca Trail).