Wallenda to cross Niagra Falls

Nik Wallenda is ready to add yet another amazing feat to the storied and sometimes tragic Wallenda family history with his walk across Niagara Falls.

ABC will broadcast the walk tonight night by Wallenda, a seventh-generation member of the circus performers.

The Wallendas trace their fearless roots to 1780 Austria-Hungary, when ancestors traveled as a band of acrobats, aerialists, jugglers, animal trainers and trapeze artists.

His great-grandfather, Karl, was the patriarch of the modern day Wallendas and himself walked over the Tallulah Gorge on a tightrope.

However he died at age 73 when he fell from a wire in Puerto Rico.

Fourteen family members perform today in various troupes.