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)

Seen in a long camera exposure, the Caldor Fire burns on Sunday, August 29, 2021, in Eldorado National Forest, Calif. (Photo by Noah Berger/AP Photo)

Robert Price of TREWGrip LLC demonstrates a TREWGrip handheld rear-type keyboard and air mouse for Apple and Android tablets at the “CES: Unveiled”, media preview for International CES, at the Mandalay Bay Convention Center in Las Vegas on January 5, 2014. (Photo by Robyn Beck/AFP Photo)

Peter Dinklage, left, and Lena Headey attend the 67th Primetime Emmy Awards on Sunday, September 20, 2015, at the Microsoft Theater in Los Angeles. (Photo by Alex Berliner/Invision for the Television Academy/AP Images)

Dead leaf or almost by Guilhem Duvot. Taken in Nován Stráž, Slovakia. Describe what is pictured? A dead leaf grasshopper. How does this image fit with the theme of the competition? The perfect camouflage – nature is amazing. I saw the grasshopper only because it jumped. (Photo by Guilhem Duvot/Royal Society of Biology)

Series of portraits by Muir Vidler for his project Rebels Without a Pause: Britain's ageing rebels and mavericks.

An artist has created a homage to cultural and historical figures – by immortalising them as Star Wars characters. Mike Leavitt wanted to “document the pulse of our times” through his sculpture by splicing non-fiction characters with famous faces. He chose the sci-fi trilogy as a basis for what he calls his “pop culture satirical mash-ups”, with many of the pieces hand-carved from wood. The hilarious results include Albert Einstein as R2D2, Michael Jackson as an Ewok and Angelina Jolie in Princess Leia's famous slave girl outfit. Photo: Gandhi as Yoda. (Photo by Mike Leavitt/Rex USA)