Grand Canyon

In the past five years, Gabby Giffords has hiked the Grand Canyon, gone skydiving, raced in a 40-mile bike ride and founded an advocacy group that helped persuade President Barack Obama to take executive action on gun control.

GRAND CANYON NATIONAL PARK, Ariz. (AP) -- The National Park Service created a national landmark Tuesday to commemorate a 1956 collision between two airliners over the Grand Canyon, a disaster that helped lead to major changes in aviation safety and creation of what is now the Federal Aviation Administration.

Arizona's Republican leaders, known for picking fights with the federal government, are seething again now that the Grand Canyon is closed because of the budget crisis in Washington.

Aerialist Nik Wallenda's tightrope walk over a gorge near the Grand Canyon drew nearly 13 million viewers to the live television broadcast.

I knew I had to tune in last night to Discovery to catch Nik Wallenda waking 1,500 feet above the Grand Canyon. I knew that had he failed in his attempt, we’d all be talking about what a fool he was for trying in the first place. Or how brave he was in trying...