American socialite Rita Lydig in a 1905 photo. Gertrude Kasebier/Library of Congress hide caption
Ramona Martinez is under no illusion that this selfie is a work of art. Ramona Martinez/NPR hide caption
To selfie, or not to selfie? iStockphoto hide caption
The hand-colored photo, titled "Reclining young lady," is of Stella Osarhiere Gbinigie when she was 16. Solomon Osagie Alonge/Franko Khoury/National Museum of African Art hide caption
"Winter is better. You can't get nothing on a summer day. You can't get no help in the summer. I don't have no place to stay, but I sleep out here sometimes on the streets. I try to make a little money to buy me a little something to eat because I don't like eating out of trash cans. That makes me sick." Joe Rubino/Close Up Baltimore hide caption
One of the princesses of Kabul. David Fox/Courtesy of Humans of Kabul hide caption
On the day that he announced his resignation, Richard Nixon ordered cottage cheese, pineapple slices and a glass of milk. Robert Knudsen/Nixon Library hide caption
The Weinfeld Family, 2009. Photographer Frederic Brenner, who took this photo, created This Place, an exhibit that features the work of 12 internationally acclaimed photographers in Israel and the West Bank. Frederic Brenner/Courtesy of Howard Greenberg Gallery hide caption
"Amanda and her Cousin Amy": Mary Ellen Mark photographed Amanda Marie Ellison, 9 (right), and Amy Minton Velasquez, 8, in Valdese, N.C., in 1990. Courtesy of Mary Ellen Mark Studio and Library hide caption
Instagram's latest update features curated photo collections and trending tags. Instagram hide caption
Vanity Fair's Twitter page shows its July cover with Caitlyn Jenner. The issue and photo shoot had to be planned in secret. Mladen Antonov/AFP/Getty Images hide caption
Rekha is one of the many caged prostitutes Mary Ellen Mark came to know as she photographed in the red-light district of Mumbai. Courtesy of Mary Ellen Mark Studio and Library hide caption
Photographer Gabriel Garcia Roman's "Queer Icons" series portrays queer people of color as saints and warriors. Jahmal Golden is a poet and a student at The New School. Courtesy of Gabriel Garcia Roman hide caption
![Carrot pullers from Texas, Oklahoma, Missouri, Arkansas and Mexico. "We come from all states and we can't make a dollar in this field noways. [sic] Working from seven in the morning until twelve noon, we earn an average of thirty-five cents." California, February 1937](https://web.archive.org/web/20150813234828/http://media.npr.org/assets/img/2015/05/26/8b31661u_wide-51304d872b2fa7ab888fb8b70afc360f1764064a-s300.jpg "Carrot pullers from Texas, Oklahoma, Missouri, Arkansas and Mexico. \"We come from all states and we can't make a dollar in this field noways. [sic] Working from seven in the morning until twelve noon, we earn an average of thirty-five cents.\" California, February 1937")
Carrot pullers from Texas, Oklahoma, Missouri, Arkansas and Mexico. "We come from all states and we can't make a dollar in this field noways. [sic] Working from seven in the morning until twelve noon, we earn an average of thirty-five cents." California, February 1937 Dorothea Lange/Library of Congress hide caption
Photographer Mary Ellen Mark attends the Leica Los Angeles grand opening on June 20, 2013. Mark died Monday. She was 75. Todd Williamson/Invision for Leica hide caption
Army Spc. Jerral Hancock sits for a portrait with his son Julius. It is believed that Hancock was trapped under the wreckage of his Army tank in Iraq for half an hour before he was rescued. Courtesy of David Jay/Unknown Soldier hide caption
Grandma Ruby and Me, 2005, from The Notion of Family (Aperture, 2014). LaToya Ruby Frazier hide caption
Photographer Sally Mann drives with her greyhound, Honey, in the early 2000s. Michael S. Williamson/Courtesy of Michael S. Williamson hide caption
Tennis fans at this year's Wimbledon will have to take selfies the old-fashioned way, like these fans at last year's championships. Dan Kitwood/Getty Images hide caption
"Question Bridge: Black Males" attempts to represent black male identity in America via a video question-and-answer exchange. At top center is Jesse Williams, the project's executive producer. Question Bridge: Black Males hide caption
Francisco de Goya's Picnic En La Ribera Del Manzanares (Picnic on the Banks of the Manzanares), 1776 Francisco de Goya/Wikiart hide caption
Come out of the Bone Age, darling....1955 Courtesy of the artist and Jack Shainman Gallery, New York hide caption