Friedi Kühne balances above the forest canopy in this heart-racing video.
Video yosemite
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Off-duty officer saves 24-year-old hiker from whirlpool
The harrowing scene was captured on camera and shared on Facebook with advice on how to handle drowning victims.
Google Earth is offering online tours of 31 national parks
Google Earth currently offers virtual tours of 31 U.S. national parks, including Yellowstone and the Grand Canyon.