At 74, Philippe Petit once again defied the odds on Wednesday and Thursday when he celebrated the 50th anniversary of his tightrope walk ... Twin Towers and fastened a tightrope between the ...

Gulp. This walk is not for the faint-hearted. On Thursday, the Jinmao Tower in Shanghai opened its glass skywalk to the public. Daredevil visitors can now walk or sit on the glass walkway for up ...