Why go now: Broadway (also known as 300 South) is full of creative, bohemian energy. Main hub: The four-block stretch of Broadway between State Street and 500 East. Population: Artists, musicians, and entrepreneurs. Art you'll see: Sculptures, ceramics, folk art, and photography. Linger: Every third Friday of the month, galleries keep their doors open Late and offer nibbles (gallery stroll.org). Lunch break: Grab a slice of chicken pizza from. Sicilia Pizza ($; closed Sun; 145 E. Broadway; 801/961-7077). Discoveries to sit on: Midcentury finds like Eames and Knoll chairs at the Green Ant (179 E. Broadway; 801/595-1818). Click: Stop by Saans Downtown Photography Gallery & Studio for …