Potop v piramido (2011)

Two experienced divers searched Ravne tunnels at the foot of the hill Visocica, trying to find the answer can these structures be man-made. The quest began in the beginning of the year 2011 when they found tunnels filled with water close to the highest and oldest of all the pyramids in the world, Pyramid of the Sun in Visoko. Can they lead to the heart of the pyramid structure? Marko and Bojan decided to find out the truth.