The Bjarke Ingels Group completed the Spiral, a tower in Hudson Yards with tree-lined terraces going around the building, all the way up.  Today we'll talk with project architect, Dominyka Voelkle.  Later, you'll discover architect Carter Sparks through his number one fan and archivist, Justin Wood.  Then it's returning musical guest, jazz superstar and high school teacher, the delightful Canadian Diana Panton.