time

Museums are just calling out for some extreme action. Why stroll leisurely through the Louvre when you can set time limits and hit every painting in under an hour? Museums usually have wide open spaces for rollerblading, and the museum personnel will be too stunned to stop you. However, using modern sculpture for springboards and ladders is uncool, and usually costly. Bonus extreme points for successfully hitting a Roy Lichtenstein print with your saliva.