Tiahuanaco, a region of Bolivia that holds many remnants of ancient civilizations, demonstrates some of the most unique and amazingly precise examples of stonework in the world. The ancient people who created these walls and buildings used such a high degree of mathematical expertise that the workmanship is astounding even to modern day people. They marvel at how the stone-cutters from long ago created all of it with simple hand tools.
The high plains of Peru and Bolivia in the Andes Mountains holds a wealth of historical sites, each one more amazing than the next. Scholars and archaeologists had only seen the same type of masonry in ancient Egypt before this. Although some historians call this Inca architecture, this later time period civilization had little to do with creating these fantastic structures. The Incas dominated this area from approximately the 13th to 14th centuries AD up until the time of the Spanish explorers' conquest of the region. Indeed, they built some magnificent structures, but the ones most interesting for their precision and longevity came from even older groups. Some of these empires were called the Wari and the Tiwanaku. They existed hundreds or even thousands of years before the Inca came to power.