Milwaukee - Tightrope walker Nik Wallenda has pushed the envelope again.
The stuntman pulled off the longest tightrope walk in his career Tuesday night.
He covered almost 1600 feet on a wire suspended above the Wisconsin State Fair near Milwaukee.
The wire was the width of a nickel.
The wire was ten stories above the ground - and it was slanted downwards.
Wallenda, who comes from a family of daredevils known as "The Flying Wallendas" has successfully wire-walked above the Grand canyon, Niagara Falls and between two skyscrapers in Chicago.
