It's a wooden box, covered in gold, and topped with two winged figures. It also may be the most famous lost treasure in history. The Ark of the Covenant was built by the Israelites at God's command 3,000 years ago to hold the stone tablets with the original Ten Commandments. Most scholars believe it was destroyed 25 centuries ago, if it existed at all, but some Ethiopian religious leaders claim to know exactly where it is. What is the truth? Join the investigation as we attempt to uncover the secrets of the lost ark.