At the Museum of Contemporary Art in Los Angeles, there's an exhibit right now which goes to darker places with a camera. The images in "Real Worlds" are from three major photographers, taken over half a century.
There's Brassaï, a French-Hungarian who made his reputation revealing secret Paris nights between the World Wars. There's Diane Arbus, American, who said in the 1960s, "I really believe there are things nobody would see if I didn't photograph them." And there's Nan Goldin, another American, who stunned the 1980s with her series "The Ballad Of Sexual Dependency."