Project 24 San Francisco
Wed.–Sun. through Sept. 10, 11 a.m.–5 p.m.
The Dryansky Gallery (2120 Union St.)
This group exhibition features 24 black and white photographs, taken by 24 hand-selected Bay Area-based photographers, over a 24-hour period during the winter solstice of 2014, the shortest day of the year. Free, 415-932-9302, thedryansky.com