Where is the American Ninja Warrior held at?
Los Angeles – “American Ninja Warrior is a spin-off of Sasuke and began on December 12, 2009 in Los Angeles, California” http://en.wikipedia.org/wiki/American_Ninja_Warrior More info: “About Ninja Warrior As Ninja Warrior’s exclusive US home, only G4 brings you the triumphs and agonizing defeats from Japan’s punishing Mount Midoriyama course.