The holder of half a dozen world records will walk across the Grand Canyon on a steel cable with nothing but the Little Colorado River 1,500 feet below on June 23. With no tethers or safety nets, the walk will be the highest tightrope attempt ever for the 34-year-old, at a height taller than the Empire State Building. Last year, Wallenda, a seventh-generation member of the “Flying Wallendas” family of acrobats, became the only person to walk a wire over the brink of Niagara Falls. Photo: Nik Wallenda walks across a tightrope 200 feet above U.S. 41 on January 29, 2013 in Sarasota, Florida. (Photo by Tim Boyles)

Construction workers walk past a mural in Phnom Penh on September 6, 2022. (Photo by Tang Chhin Sothy/AFP Photo)

Colombian-American actress Sofía Vergara in the first decade of November 2022 takes a risqué selfie inside her walk-in closet. (Photo by sofiavergara/Instagram)

People walk near to a motorcycle ride called “Caravan of Terror”, in Caracas, Venezuela on October 29, 2022. (Photo by Leonardo Fernandez/Reuters)

Women wear traditional Hanbok dresses as they walk past fallen autumn leaves in Seoul on November 21, 2022. (Photo by Anthony Wallace/AFP Photo)

A couple joke as they walk on the beach on August 22, 2018 in Wonsan, North Korea. (Photo by Carl Court/Getty Images)

A woman dressed up as a zombie participates in a zombie walk in Stockholm, Sweden on August 19, 2017. (Photo by Jonathan Nackstrand/AFP Photo)

Women dressed as a rabbit and a fox, who pose for pictures with tourists, walk in central Kiev, Ukraine April 4, 2018. (Photo by Gleb Garanich/Reuters)