Da wird einem nur schon vom Zuschauen schwindlig!

Record breaking solo climber shows what he's made of. - Ueli Steck, a carpenter from canton Bern, has become known as one of the world's most extreme mountaineers. On February 13, 2008, Steck broke his own speed record of 3hrs 54min on the Eiger North Face, when he climbed the sheer wall in 2hrs 47min. (Film courtesy of Suunto/swissinfo)