Sometimes less really is more, as the Ringling Bros. and Barnum and Bailey circus proved this weekend. Making their Gwinnett debut, the Ringling Bros. set up camp at the arena to present "Upside Down World." In the show, all the events of a three-ring circus have been condensed into one ring. Traditional and innovative circus acts are spotlighted, including dancing elephants, high-wire ballets, pliable contortionists and crazy clowns.