Pity the collectors silently nibbling endive in austere Chelsea galleries – at 49 Geary, openings mean unexpected art, goldfish-shaped crackers and outspoken crowds. Four floors of galleries feature standout international and local works including eclectic, eye-popping photography ranging from the 19th to 21st centuries at Fraenkel Gallery to sculptor Seth Koen's minimalist pieces at Gregory Lind. Beat the crowds by coming on weekdays for quieter contemplation.