Overview: Today on Daily Planet, we tunnel under one of the most architectural cities in the world. Plus, what sounds await us in the deepest part of the ocean. Also, Alan Nursall is back with an all new surprise and Canadian astronaut, Chris Hadfield, stops in for a visit. The answers are revealed on Mindbender and all new editions of Discoveries, Trending, Planet You and Planet Weird are here, you won't want to miss today's episode of Daily Planet.