Urban Sports

Buildering aka Urban Climbing, Urban Cragging, stegophilism
http://www.buildering.net/
Urban cragging http://www.urbanfreeflow.com/
Urban Exploration http://en.wikipedia.org/wiki/Urban_exploration
Pakour http://en.wikipedia.org/wiki/Parkour

http://www.gizmo.com.au/public/News/news.asp?articleid=1547 http://www.gekkomat.de/ Suction cups to climb up walls