Starting Oct. 4, Baum Avenue springs to life as the Mezzo Market takes over St. Petersburg's EDGE District. Each event runs from 11 a.m. to 4 p.m..Local makers and sellers transform the street into a bustling bazaar. Fresh faces and familiar sellers mix it up each month, so no two markets are quite the same. The timing fits well with St. Petersburg's market scene. Just blocks away, the Saturday Morning Market at Al Lang Stadium starts its season the same day.