For those keeping up with the fledgeling personal jet flight sector, there's really three people to keep an eye on, and they each neatly fit a superhero model. Australia's David Mayman of Jetpack ...

Zinie Chen Sampson, AP travel writer from Richmond, Va., right, as she learns the basics of zip-lining from Chris Kirkland, a guide for the Gravity zip line tour near Fayetteville, W.Va. Zip-lining ...

For exciting aerial adventures that will make your teenagers willingly ditch their phones for a few hours, check out this list of the best zip-line courses in the country. These tours let you launch ...

Gravity is one of more than 300 major commercial zip lines and canopy tours worldwide, with about 115 of them in the United States, said Jeff Coy, a hotel, resort and waterpark industry consultant.