With their low center of gravity and natural ability to live fearlessly in the present, most kids are quick studies on the slackline. Just look at 14-year-old Alex Mason, who won the inaugural ...

Or more accurately, slacklining — a sport in which users string a wide, flat line between two trees and walk across it. From “highlining” (rigging the line 20 feet in the air or higher) to ...

Known for possessing nerves of steel, Estonian slackliner Jaan Roose is a 3-time world champion and the holder of numerous world records. There’s a fine line between ambition and foolishness, and Jaan ...

Phillipe Petit is well-known for his death defying high wire walking between the Twin Towers, across Niagara Falls, the Eiffel Tower and many other buildings. Aside from the euphora from a successful ...