Smorgasburg is held during Saturdays in Williamsburg at Bushwick Inlet Park at Kent & North 8th Street [head toward East River] and on Sundays it's held in Prospect Park at Lincoln Road and Ocean Avenue [head inside the park toward the ponds]. Brooklyn street fairs in Prospect Park & Williamsburg street fairs in Brooklyn. It hosts between 50 - 100 food vendors and it's organized by a private company. For details see -https://www.smorgasburg.com