Join Danny MacAskill on an insane journey across the rooftops of Gran Canaria. Mixing vertigo-inducing lines and killer POV-footage, “Cascadia” delivers some incredible riding.

Leo Taillefer was determined to win the $20K prize from GoPro for filming the best run of the winter over the course of this years' season, and boy did he nail it with this one.

Jimmy Chin has accomplished it all in the world of action sports and he's had a camera in his hands the whole time. From skiing Everest to climbing some of the world's largest peaks, he has made a career of taking on incredible expeditions while documenting them through photos and videos. His unique expertise across various disciplines has led him to capturing moments that quite literally no one else on Earth could.

Alex Honnold competes in a sport more commonly covered by National Geographic than ESPN. Yet he's likely garnered more media attention than any other climber before him, for an obvious reason: He climbs giant, sheer walls (such as Half Dome and El Capitan) without using ropes or protection. It's called "free-solo," and it's the most dangerous kind of climbing.

By now everyone knows that Alex Honnold is the best free-solo climber in the world. We know he scaled Yosemite’s Half Dome (VI 5.12b) alone and without a rope. We’ve seen him on the cover of National Geographic, Outside, on 60 Minutes, and in a Citibank commercial that ran way too many times.

An international trio comprised of Roger Schäli (Switzerland), Robert Jasper (Germany) and Simon Gietl (Italy) have established Odyssee (8a+, 1400m), a difficult and serious new rock climb up the North Face of the Eiger in Switzerland.

Joe Ridler has jumped out of an airplane nearly 700 times in his life, but when he makes the leap later today, the goal will be about more than reaching the ground safely. It will be to fly through the air faster, farther, and for longer than anyone else in the sky. Ridler’s competing in the National Championships of Wingsuit Flying in Chicago, also known as wingsuit racing.

Big Ball Tennis is the new sport taking the tennis world by the balls. Read how to play it, what equipment you need, and why you'll never want to play boring 'ol tennis again.

Jon Griffith and Andy Houseman go where no one had been before – the Link Sar West in Pakistan.

We followed the boss down one of the fastest runs in Colorado. With speeds approaching 70mph, and rough-ass pavement. Be ready to have your fuckin' face melted. Keep in mind... This was his first run.

Opening in theaters August 14th. In the high-stakes pursuit of big-wall climbing, the Shark's Fin on Mount Meru may be the ultimate prize. Sitting 21,000 feet above the sacred Ganges River in Northern India, the mountain's perversely stacked obstacles make it both a nightmare and an irresistible calling for some of the world's toughest climbers.

A kite surfer at a San Francisco beach was caught in a huge gust of wind and dragged across a parking lot on to a highway, where he was hit by a car and critically injured, police said. The man was setting up his rig at the edge of the water on Friday afternoon at Ocean Beach when the wind caught him and took him onto the Great Highway, city police said in a statement. Winds of about 35 mph with gusts approach 50 mph were blowing on the beach at the time.

Those who don't like heights should look away now. Because, if the idea of standing near the edge of a piece of rock jutting out over a 700 metre drop is enough to give you sweaty palms, these pictures of a daredevil doing a backflip are likely to send you into a full blown panic attack. Luckily, Toby Segar had no such fears when he decided to perform the stunt on the edge of Trolltunga - or 'Troll's Tongue' - in Norway.

How a humble fisherman's son became one of the world's best big wave riders... and challenged the status quo

There are thousands of industrial chimneys in the Czech Republic, with many dating back to the late 19th Century - most are no longer used and a group of enthusiasts spend their weekends climbing the structures. Alastair Lawson joined them in Zelezny Brod, but soon regretted it. I am 40m (130ft) up a 120-year-old chimney in the north-east of the Czech Republic and I am having a minor panic attack. My legs feel like lead weights as I look down on the tiny figures on the ground below me.

One bull chosen to take part in Saturday's San Fermin festival took one look at thousands of thrill-seekers waiting to be chased down Pamplona's narrow streets and scampered back to the safety of his corral. In a scene that confounded revellers and experts - and could have been scripted by Munro Leaf, who wrote The Story of Ferdinand - a reticent bull named Curioso I barely ran 20 metres before heading back.

Check out a stage-by-stage breakdown of The Alaska Challenge, which bills itself as the longest, toughest handcycle race in the world.

In the summer of 2014 Dave MacLeod set his sights on opening a hard new route on Cima Ovest in the Italian Dolomites. A bold objective for anyone at any time. For Dave though, this project brought with it some of the greatest challenges he has ever faced.

In July, 2001, Chris Sharma made the first ascent of Realization (AKA Biographie), the world's first confirmed 5.15 (9a+), in Ceuse, France. This short film shows the process he went through trying the route for many weeks over several trips, and the actual footage of the historic first ascent.

Megavalanche Glacier Carnage - Polygon UR