An American climber scaled  Taiwan 's tallest tower on Sunday, without a safety net or a harness, becoming the first person to do so. Hundreds of spectators gathered as Alex Honnold, 40, began his journey up the "Taipei 101." After an hour and a half, Honnold had successfully climbed 1,667 feet (508 meters), uttering the word "sick" as he took in the view. He then rappelled down to his wife Sanni McCandless Hannold. The risky adventure was captured and broadcast live on streaming platform