American climber Alex Honnold has reportedly pulled off another jaw-dropping feat — scaling a 508-metre (1,667-foot) skyscraper in Taiwan without a rope, harness or safety equipment. The structure, believed to be Taipei 101, is one of the tallest buildings in the world, making the climb one of the most extreme urban ascents ever associated with the free-solo legend. Honnold, famous for his death-defying climbs and the Oscar-winning documentary Free Solo, has built a reputation for tackling seemingly impossible vertical challenges using nothing but his hands, feet and mental discipline. Footage and reports circulating online show the climber moving steadily up the towering facade, leaving viewers stunned — and divided — over the sheer risk involved. While details around the climb are still emerging, fans have flooded social media with reactions ranging from admiration to disbelief, with many calling it “insane,” “unreal,” and “peak human courage.” If confirmed, the climb would rank among the most daring urban feats ever attempted.