The top 8 compete Monday 8/7c! Catch up now.
It's about as dangerous a thing as you can do, but tightrope walker Nik Wallenda successfully fulfilled a life-long dream on Friday night: to be the first to walk a high-wire across Niagara Falls. (TODAY)
Nik Wallenda, a seventh-generation high-wire performer, chats with TODAY's Lester Holt about pushing the limits of his adrenaline-pumping craft in the new TV series "Life on a Wire." (TODAY)