Daredevil performer Nik Wallenda walks untethered along the rim of the Orlando Eye, the Florida city's new 400-foot observation wheel, in April 2015. Click through the gallery for other Wallenda stunts through the years.
Daredevil performer Nik Wallenda walks untethered along the rim of the Orlando Eye, the Florida city's new 400-foot observation wheel, in April 2015. Click through the gallery for other Wallenda stunts through the years.
John Raoux/AP
Aerialist Nik Wallenda traversed this wire in November 2014 above downtown Chicago.
Aerialist Nik Wallenda traversed this wire in November 2014 above downtown Chicago.
Chris Melzer/picture-alliance/dpa/AP Images
Wallenda walks on a tightrope 1,500 feet above a river near the Grand Canyon in Arizona in June 2013. <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2013%2F06%2F24%2Fus%2Farizona-high-wire-wallenda%2Findex.html">The quarter-mile trek</a> over the Little Colorado River Gorge took 22 minutes and 54 seconds.
Wallenda walks on a tightrope 1,500 feet above a river near the Grand Canyon in Arizona in June 2013. The quarter-mile trek over the Little Colorado River Gorge took 22 minutes and 54 seconds.
JOE KLAMAR/AFP/Getty Images
Wallenda with his sister Lijana, left, and his wife, Erendira, at Circus Sarasota in February 2013 in Florida. Nik and Lijana are members of the famous Flying Wallendas, founded by great-grandfather Karl in the 1920s. <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2012%2F06%2F13%2Fus%2Fgallery%2Fwallendas%2Findex.html">See the Wallenda family through the years.</a>
Wallenda with his sister Lijana, left, and his wife, Erendira, at Circus Sarasota in February 2013 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.
Tim Boyles/Getty Images
<a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2012%2F06%2F15%2Fus%2Fniagara-falls-tightrope-nik-wallenda%2Findex.html">Wallenda tighropes over the Niagara Falls</a> in June 2012, becoming the first person to cross directly over the falls from the United States into Canada.
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.
John Moore/Getty Images
The seventh-generation aerialist crosses Niagara Falls in June 2012. The tense 1,800-foot journey took 25 minutes, a CNN affiliate reported.
The seventh-generation aerialist crosses Niagara Falls in June 2012. The tense 1,800-foot journey took 25 minutes, a CNN affiliate reported.
GEOFF ROBINS/AFP/Getty Images
Crowds watch the daredevil during a 1,500-foot tightrope walk 100 feet above the beach in Atlantic City, New Jersey, in August 2012.
Crowds watch the daredevil during a 1,500-foot tightrope walk 100 feet above the beach in Atlantic City, New Jersey, in August 2012.
STAN HONDA/AFP/Getty Images
Wallenda wows beachgoers in Atlantic City in August 2012.
Wallenda wows beachgoers in Atlantic City in August 2012.
STAN HONDA/AFP/Getty Images
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 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.
Jared C. Tilton/Getty Images for NASCAR
Wallenda walks one of the Sky Ride cables at the Cedar Point amusement park in Sandusky, Ohio, in July 2009.
Wallenda walks one of the Sky Ride cables at the Cedar Point amusement park in Sandusky, Ohio, in July 2009.
Jason Werling/The Sandusky Register/AP
Wallenda performs a "Wheel of Death" stunt at the Tropicana Casino and Resort in Atlantic City in April 2011.
Wallenda performs a "Wheel of Death" stunt at the Tropicana Casino and Resort in Atlantic City in April 2011.
Anthony Smedile/The Press of Atlantic City/AP
Wallenda crosses the Fiesta Plaza in The Quarter 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.
Anthony Smedile/The Press of Atlantic City/AP
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 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.
Ricardo Arduengo/AP
Wallenda walks a 1,000-foot-long high-wire suspended 200 feet over the Allegheny River in Pittsburgh in July 2009.
Wallenda walks a 1,000-foot-long high-wire suspended 200 feet over the Allegheny River in Pittsburgh in July 2009.
Gene J. Puskar/AP
Wallenda kisses his wife, Erendira, after the stunt above 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.
UPI Photo /Landov
Wallenda pedals to the end of a wire 12 stories above a Newark, New Jersey, street in October 2008. He earned the <a href="index.php?page=&url=http%3A%2F%2Fwww.worldrecordacademy.com%2Fstunts%2Fhighest_and_longest_bike_ride-Nick_Wallenda_sets_world_records_80407.htm" target="_blank" target="_blank">Guiness World Record</a> 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.
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.
Mike Derer/AP