From gooseneck barnacles and Muga silk to Japanese longbows and Stetson cowboy hats, we traveled the world to uncover the stories behind some of the most valuable items. MORE SO EXPENSIVE VIDEOS: Why Climbing Mount Everest Is So Expensive | So Expensive | Business Insider Marathon youtube.com/watch?v=Yxigd9dlsd8 Why Musicians Pay Over $15K For John Coltrane’s Favorite Saxophone | So Expensive | Business Insider youtube.com/watch?v=zJg7j5ge9EM 26 Of The Most Expensive Liquids In The World | Business Insider Marathon youtube.com/watch?v=UHOIaYOxKlI 00:00:00 - Intro 00:00:31 - Steinway Grand Pianos 00:08:33 - Hasselblad Cameras 00:15:04 - Nonthaburi Durian 00:22:30 - Japanese Ruby Roman Grapes 00:30:23 - Japanese Calligraphy Brushes 00:39:27 - Pine Nuts 00:46:36 - Green Cardamom 00:53:21 - Stetson Cowboy Hats 00:59:53 - Japanese Longbows 01:06:49 - Mastic Tree Resin 01:14:26 - Matsutake Mushrooms 01:22:15 - Gooseneck Barnacles 01:28:56 - Zisha Teapots...