Wallenda's blindfolded tightrope walk

• NEW: The seventh-generation aerialist's walk was broadcast on Discovery


• NEW: Nik Wallenda was blindfolded for part of the walk between two skyscrapers


• Wallenda is a member of the Flying Wallendas, founded by his grandfather in the 1920s

(CNN) -- Record-breaking daredevil Nik Wallenda completed Sunday what he called his most challenging feat to date: a tightrope walk between two skyscrapers 600 feet above downtown Chicago, partly blindfolded.

Crowds below cheered on the seventh-generation aerialist, who wore a microphone during his untethered walk. The "Skyscraper Live" walk was broadcast on Discovery.

"I love Chicago, and Chicago definitely loves me. What an amazing roar," the 35-year-old said as he crossed above the Chicago River.

The walk consisted of two parts, starting from Marina City's West Tower, about 588 feet high. He crossed above the Chicago River to the Leo Burnett Building in just under seven minutes, finishing 671 feet above the street, according to Skyscraper Live's website.

Daredevil tightrope walker does it again

Aerialist Nik Wallenda traversed this wire Sunday above downtown Chicago. Click through the gallery for other Wallenda stunts through the years.

Wallenda walks on a tightrope 1,500 feet above a river near the Grand Canyon in Arizona on Sunday, June 23. The quarter-mile trek over the Little Colorado River Gorge took 22 minutes and 54 seconds.

Wallenda with his sister Lijana, left, and his wife, Erendira, at Circus Sarasota in February in Florida. Nik and Lijana are members of the famous Flying Wallendas, founded by great-grandfather Karl in the 1920s. See the Wallenda family through the years.

Wallenda tighropes over the Niagara Falls in June 2012, becoming the first person to cross directly over the falls from the United States into Canada.

The seventh-generation aerialist crosses Niagara Falls in June 2012. The tense 1,800-foot journey took 25 minutes, a CNN affiliate reported.

Crowds watch the daredevil during a 1,500-foot tightrope walk 100 feet above the beach in Atlantic City, New Jersey, in August 2012.

Wallenda wows beachgoers in Atlantic City in August 2012.

Wallenda performs during prerace ceremonies for the NASCAR Sprint Cup Series: Bank of America 500 at Charlotte Motor Speedway in Concord, North Carolina, in October 2012.

Wallenda walks one of the Sky Ride cables at the Cedar Point amusement park in Sandusky, Ohio, in July 2009.

Wallenda performs a "Wheel of Death" stunt at the Tropicana Casino and Resort in Atlantic City in April 2011.

Wallenda crosses the Fiesta Plaza in The Quarter at the Tropicana Casino and Resort in Atlantic City in April 2011.

Wallenda wipes sweat from his forehead as he maneuvers across a 300-foot-long wire suspended 100 feet in the air between two towers of Puerto Rico's Conrad San Juan Condado Plaza Hotel in June 2011.

Wallenda walks a 1,000-foot-long high-wire suspended 200 feet over the Allegheny River in Pittsburgh in July 2009.

Wallenda kisses his wife, Erendira, after the stunt above the Allegheny River in Pittsburgh in July 2009.

Wallenda pedals to the end of a wire 12 stories above a Newark, New Jersey, street in October 2008. He earned the Guiness World Record for the longest distance and greatest height traveled by bicycle on a high wire when he traveled 235 feet at a height of 135 feet.

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

Nik Wallenda on the high wire

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Photos: Nik Wallenda on the high wire

After he returned to the West Tower, he crossed to the East Tower blindfolded in one minute and 20 seconds.

As a member of the famous Flying Wallendas, founded by his grandfather Karl Wallenda in the 1920s, Wallenda is no stranger to death-defying stunts. He walked across a wire 1,500 feet above a river in Arizona in June 2013, becoming the first person to traverse the gorge near Grand Canyon National Park in Arizona. Before that, he made a record journey across Niagara Falls in 2012.

Peril also runs in the Wallenda family. Great-grandfather Karl Wallenda was killed at 73 while attempting to walk between two buildings in Puerto Rico in 1978.

But on Sunday, Wallenda made it look easy.

"I'm so blessed for these opportunities," he said during his walk. "You guys watching think I'm crazy, but this is what I was made for."

Last nights selfie just before the walk! #skyscraperlive #WallendaLive #nevergiveup http://ift.tt/1ocFzPu

— Nik Wallenda (@NikWallenda) November 3, 2014

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