Bodybuilding is a form of body modification involving intensive muscle hypertrophy; an individual who engages in this activity is referred to as a bodybuilder. In competitive bodybuilding, bodybuilders display their physiques to a panel of judges, who assign points based on their appearance. People well-known for being bodybuilders include Arnold Schwarzenegger, Lou Ferrigno, Ronnie Coleman and Charles Atlas. Currently, Dexter Jackson holds the title of Mr. Olympia, as the world’s top bodybuilder. Here are the 12 monstrous male bodybuilder wallpaper.