Underground Pyramid Found in Bolivia

Location: Tiahuanaco, Bolivia
Year Discovered: 2015
Est. Value: Unknown 

Tiahuanaco in Bolivia and its historical ruins have led to quite a few discoveries, and excavations have continued for years by both private companies and the government. In 2015, one of the most shocking findings at Tiahuanaco was an underground pyramid. Archaeologists discovered it with the use of ground-penetrating radar.

They also found monoliths within the pyramid. Excavations into this belowground pyramid are still ongoing. Tiahuanaco was once home to ancient South America’s most important city. The city spanned 231,000 square miles, and finds from this massive historical site have included stone monuments, palace ruins, sculptures, and more. Since 2000, Tiahuanaco has been a UNESCO World Heritage Site.