Conceptual artist Tavares Strachan creates the kinds of projects that make you stop in your tracks, like a 4.5-ton block of Arctic ice he brought back to his birthplace in the Bahamas or a gold, Egyptian-inspired sculpture he launched into orbit around the Earth. Now he presents his latest creation, the Encyclopedia of Invisibility: a 3,000-page tome filled with more than 17,000 entries on people, places and events often left out of the history books -- and encourages us all to unearth hidden stories before they disappear to the passage of time.