Portaledge camping at Yosemite.
British climber John Roberts in South Africa.
Ice climbing a frozen waterfall.
Extreme kayaking at Victoria Falls.
Blake Aldridge dives 29 meters from the rock monolith during the Red Bull Cliff Diving World Series in Portugal.
A death-defying act by Eskil Rønningsbakken in Norway.
Base jumping in Yosemite.
A ride at the Stratosphere Tower in Las Vegas.
Driving down a sand dune in Lucky Bay, Australia.
- For MLK Day, we're taking a look at some rare pictures of Martin Luther King Jr.
- At least four people were killed in a shooting at a Mexican music festival.