Come celebrate! SEPTEMBER 11, 12 & 13, 2015 at St. Sophia Cathedral, 1324 S. Normandie Ave, Los Angeles, CA 90006, phone: (323) 737-2424. The annual LA Greek Fest is a celebration of Greek food, beer and wine, dance and culture. For 17 years, the LA Greek Fest has brought the best culinary and cultural experience to Los Angeles. The LA Greek Fest is the most celebrated Greek Festival in Southern California.