In case you haven't heard, an amazing, and quite risky, feat is going to be attempted Sunday evening in New York City. Daredevil siblings Nik and Lijana Wallenda will attempt to walk across a tightrope 25 stories above Times Square.

ABC will broadcast the event live Sunday evening at 8 p.m right above 42nd Street and 2 Times Square . Nik told ABC that he will start on one side while Lijana approaches from the opposite. ABC says the distance is about 1,300 feet.

This will be unlike any stunt you've ever seen, and the fact that it's happening 25 stories above New York City's Times Square makes this all the more captivating.

The famed duo comes from a family that has quite the history with tightrope walking going back over 200 years. Nik, himself, has already walked Niagara Falls and the Little Colorado river Gorge by the Grand Canyon. 

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