The building, named Taipei 101 for the number of its floors, is 508 metres (1,667 feet) tall, made of steel, glass and concrete and is designed to resemble a stick of bamboo. Honnold is renowned for being the first person to climb El Capitan without ropes or safety gear. The 915 metres (3,000 feet) granite cliff is in California's Yosemite national park. The climb was originally set to take place on Saturday but was delayed by wet weather. His ascent in Taiwan's capital was streamed live on Netflix, which said there was a delay on the live feed should the worst happen.

"We'll cut away," Netflix executive Jeff Gaspin told Variety magazine in the run-up to the event. "Nobody expects or wants to see anything like that to happen." Honnold completed the climb in one hour and 31 minutes on Sunday - and celebrated the achievement with one word: "Sick." His time more than halves the record of the only other person to scale the tower. Alain Robert, a Frenchman who called himself "Spiderman", made it to the top of Taipei 101 - at the time the world's tallest building - in four hours. He did so with ropes and a harness. (BBC)