Strange to think that a sport could actually be illegal -- but it could get you arrested if it involves trespassing, injures others or is just plain crazy. Here are 10 sports that could get you in trouble.
You've surely seen some amazing skateboarding tricks on TV or YouTube. But have you seen the 1080 turn? Or the Loop of Death? Or jumping the Grand Canyon? These are just some of the 10 craziest skateboarding feats. What's No. 1?
The draws of urban exploration can be tantalizing: Glimpses into architectural eras, cultures and industry gone and buried -- sometimes literally. What are 10 cities jam-packed with fascinating sites of urban decay?
Picture yourself driving on a curvy road high in the mountains. Take away the car and put yourself in a small metal sled. Now, imagine that the sled has no brakes -- and you're going 60 mph. If this sounds like fun, street luge just might be the sport for you.
For avid snowboarders, summer brings deprivation -- six months without waist-high powder, death-defying drops and high-flying half-pipes. Mountain boarding can help board-sport fanatics cope with the sunshine.
In a world aglow with electric lights and jam-packed with skyscrapers and cities, are there still uncharted territories left to explore? Sure -- the buildings and tunnels that no one uses anymore. How do urban explorers find adventure in concrete jungles?
Some people take to reading or needlepoint, but others need a little more adrenaline on the weekends. Climbing without ropes, jumping from helicopters onto snowy slopes -- what is it that drives people to such extremes?
For BASE jumpers, leaping out of an airplane at 15,000 feet and free-falling at well over 100 mph isn't quite daring enough. They look for more unique ways to test their limits -- stunts so risky that they're actually illegal in many places.
What if a morning jog didn't involve training for a marathon or wearing short shorts? What if it meant creative individual expression through acrobatic moves like leaping from walls and over gaps doing ground rolls and precision jumping?
People everywhere are putting location-based technology to innovative use creating "experiences" in public settings that are part game, part performance art, and part sociology experiment. Find out about urban gaming.