King Charles III secretly recorded a podcast episode with Cate Blanchett at Windsor Castle. Recording the Sunday, October 19, episode of "Unearthed" at a table in the castle's gardens in July, the king, 76, was interviewed about his role as Kew's Patron and work in opening the Millenium Seed Bank in 2000. (Kew, England, is home to the World Heritage Site of the Royal Botanic Gardens, and the Millenium Seed Bank is the world's largest seed bank which works to safeguard global biodiversity, per the Kew Gardens website.