Dr. Maya dreamed of working with ice cream from the age of 6. Today, she's a professional ice cream scientist and she dishes on the frozen treat in part 1 of two.

Treasure can be as spectacular as gold doubloons or as mundane as a cellphone. Chris Turner and Mike Pelley find their treasures in how people react when they reunite them with lost items.

Writer, philosopher and technologist Gary Bengier shares his book Unfettered Journey and a future with artificial intelligence.

Caroline Woodward and Jeff George share what it's like to manage a lighthouse and live on a small island by themselves.