Nik Wallenda of the famous Flying Wallenda Family, will do another death-defying walk Sunday across two skyscrapers above the Chicago River, from the West Tower of Marina City to the Leo Burnett building.

The 35 year old daredevil and a father of three will be the very first person to ever do a blindfolded skyscrapers walk at night, without a net or a harness, in the Windy City of Chicago, despite a state law that requires safety nets for aerial acts higher than 20 feet.

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The Discovery Channel will broadcast "Skyscraper Live With Nik Wallenda" in more than 22 countries. The skyscrapers walk begins at 5.30am IST on Monday. The actual walk will begin at 7 am IST.

Before he goes up on a tightrope at a 15-degree angle across the river to the Leo Burnett Building, Nik's family will be with him on the rooftop of Marina City's west tower.

The walk from Marina City is 534 feet high, to the Burnett building at 635 feet high, is about eight storeys higher, and equivalent to more than two city blocks, and expected to last from 12 to 15 minutes.

Once Nik completes the first walk, he will get down to street level and take a car back to Marina City. He said he wants to stay in the "zone" before his second walk attempt, which he plans to complete blindfolded. The 100 feet from the west to the east tower of Marina City is expected to last only two or three minutes.

Wallenda's father is the event's chief safety officer, who will hold him back if winds exceed 50 mph.

In case of emergency, Nik said, he can hold onto the cable for up to 20 minutes while waiting to be rescued. But just to be sure, a rescue team will be in place.

"My family knows only too well what my vocation is; they have utmost faith in me and in a higher power. I've been walking the wire since the age of two," Nik confidently said.

Nik's skywalk will be riskier than the one that took the life of his great grandfather in 1978. Karl Wallenda, 73, fell to his death on a windy day in Puerto Rico while attempting a wire walk between two hotel towers.

Other family members have also died or been paralyzed while doing their performances.

Nik chose Chicago over New York City skyscrapers, "because Chicago is home of the world's first skyscraper."

"My family has made a living off skyscrapers and walking from one to another for generations. And again it's known as the Windy City. I think that adds excitement," Nik, a seventh generation member of the Flying Wallenda Family, said.

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