3 of 4.
Video description: An interesting documentary concerning the rise and fall of the Incan empire, with theoretical hypothesis as to the reason for the latter. Also explored, are possible links between the Incan civilization and other early civilizations in wake of evidence collected by Historian Bill Sullivan.
See also: 1/2,
4/4. The Incas built a notable civilization in western
South America in the fifteenth and sixteenth centuries. The center of their
empire was in present-day Cuzco, Peru.
Machu Picchu is without doubt the most recognizable symbol of Inca
Civilization. "The Inca Trail", as it is known now, was the Royal Highway that
led pilgrims and officials of the Empire to the Sacred City of the Incas.
Satellite image: Google Earth, eye alt. 7,500 ft.