Underground Pyramid – Tiahuanaco, Bolivia
Excavations by private companies and government agencies at the historical ruins of Tiahuanaco in Bolivia have led to some astounding discoveries in recent years, including an underground pyramid confirmed with the use of ground-penetrating radar in 2015. This discovery is particularly fascinating as it sheds new light on this ancient site.
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The site has also yielded monoliths that have been excavated. Ongoing excavations into the underground pyramid continue to uncover new finds. Tiahuanaco was once the most important city in ancient South America and is now a UNESCO World Heritage Site. Excavations are still underway and have uncovered sculptures, stone monuments, palace ruins, and more.