The arch dam Luzzone was completed in 1963 in Ticino, Switzerland. It is now the highest artificial climbing wall in the world with over 650 holds and a high of more than 500 feet.

Tim Konrad is the founder of Unofficial Networks and a passionate skier with over two decades of experience in the ski industry. In 2006, he launched the blog from Lake Tahoe with his brother John, evolving...