Of Tiwanaku is an archaeological complex in 70 km from La Paz. The mysterious ruins of the first in the 19th century began to study the famous scientist Arthur Poznan. This exciting venture he devoted half a century of my life. The many books he devoted to the work of his life, and each tried to solve the mystery of mysterious ruins. Their origin and destination. He believed that the birth of the complex occurred in the 15th century up to n.e.thanks to the ancestors of the people of the Aymara. However recent studies have refuted this information and put the date of flowering of culture in the Tiwanaku – 3-10 century ad. The ancient city was built on the southern shore of lake Titicaca, and was surrounded by a strong defense - a huge artificial moat, thick walls. For all that lived, evolved and flourished a large city with military and administrative buildings, residential complexes, blocks of artisans, many canals and reservoirs and storage of food. Here in the city of amazing architecture, where all the buildings are distinguished by exceptional geometric accuracy and has created a culture of Tiwanaku, worshipped by the Incas. To the present have only myths and legends about the fate of this mysterious civilization, ruins and machines that were previously cultural center with strong ceremonial and astronomical value. Ancient architects, above all, tried using their buildings to show the scheme of movement of the soul from life to death, t.n. the process of reincarnation. And pretty advanced understanding of a model of the world.