Mega Wall – 18 Feet NHadmin September 12, 2019 0 Comments Ninja Hub in Canton Ohio now has the MEGA wall just like you see on the show American ninja warrior. CategoryUncategorized Write a comment: Cancel reply MessageName * Email * Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email.