CHICAGO (CBS) — Anticipation is building for the walk over the Chicago River by daredevil Nik Wallenda.

The Wallenda walk starts Sunday evening at 6 p.m. when he will walk on a wire from one of the Marina City towers to the Leo Burnett building on the other side of the river.

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Then, he will return to Marina City and walk between the two towers blindfolded.

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The live event is a change for plenty of businesses along the river to cash in by catering to onlookers seeking the best view.

Derrick Blakely has more:

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