rgest sales in Palm Beach County, Florida, points out the spiral staircas=, built by famed 1920s architect Addison Mizner for the founder of the Nat=onal Tea EFTA_R1_01755074 EFTA02579997 Company. "This home went for $30.2 million in 2003; today-that sum wouldn't be in the top 25 highest prices" of ho