Articles of lost civilization are found during the square mile excavation of Inca ruins of Tiwanaku in Bolivia.

Inca ruins of Tiwanaku in Bolivia. United Nations Education, Science and Culture Organization (UNESCO) sends archaeologists to the ancient Inca ruins. Articles of lost civilization are found during the square mile excavation. Workers dig with shovels. A man displays an article. Men pull out a three ton stone with ropes. 'Gateway of the Sun' in view.