5 Most Mysterious Ancient Discoveries..Some of the most fascinating ancient discoveries in our history were found by complete chance. These accidental findings have left researchers puzzled for years and many of them remain shrouded in complete mystery. It is this mystery surrounding them though that makes them so fascinating. Here we0„30…4ll take a look at five of the most mysterious ancient discoveries that will leave you as baffled as those who discovered them and those who have tried studying their backgrounds..1. Horned Human Skulls..In the 1880s very strange human skulls were found in a burial mound in Sayre, Bradford County, Pennsylvania....