Mysteries 10 Insane Ancient Achievements that Science Can’t Explain Out-of-place artifact (OOPArt) is a term coined by American naturalist and cryptozoologist Ivan T. Sanderson for an object of historical, archaeological, or paleontological interest... SoulAskOctober 31, 2014
Mysteries 10 Historical Mysteries From forgotten languages to lost civilizations, here are 10 historical mysteries that remain unsolved. SoulAskDecember 24, 2012