Episode 21 - S17.E21

This week Mark Miller gets a little closer to nature and architects from Barcelona attempt to rebuild an ancient classic cathedral. After the break you'll get to meet a seriously dedicated ice climber, some furry four-legged explosive detectors and a very responsible group of Yankees. Also, since today is Tuesday we have a great Super Slo-Mo in store for you. Plus, don't forget there's a new edition of Trending, Planet You, Discoveries and Weird Planet!