5 Mysterious Ancient Ruins That Could Prove Advanced Civilizations Existed in Prehistoric Times

Aleksandar Todorovic/Shutterstock; Nina/CC BY-SA 3.0

Ancient artifacts and ruins all over the world have made many scientists question whether our currently accepted understanding of prehistory is correct.

Here’s a look at some sites that have thrown a wrench in the old paradigm, remaining unexplained to this day. They seem to exhibit evidence of prehistoric civilizations far more advanced than scientists thought possible. Certain structures have been submerged as sea levels rose and land masses fell over the course of millennia.

1. The Bosnian Pyramid

When the humongous Bosnian Pyramid, 25 miles northeast of Sarajevo, was first discovered for what it was in 2005, researchers could only measure the age of the topsoil covering it, which is about 12,000 years old.