Question Bridge: Black Males attempts to represent black male identity in America through a video question and answer exchange. Top center is Jesse Williams, the executive producer of Question Bridge. Question Bridge: Black Males hide caption

itoggle caption Question Bridge: Black Males

Come out of the Bone Age, darling....1955 Courtesy of the artist and Jack Shainman Gallery, New York hide caption

itoggle caption Courtesy of the artist and Jack Shainman Gallery, New York

Robert Duncan poses with his wife, Karen, for New York photographer Iké Udé. Iké Udé/Courtesy of Robert and Karen Duncan hide caption

itoggle caption Iké Udé/Courtesy of Robert and Karen Duncan

Yes, those are people: A still image from a drone video filmed inside the world's largest cave shows cavers standing beneath one of two large skylights in Vietnam's Hang Son Doong. Ryan Deboodt /Vimeo hide caption

itoggle caption Ryan Deboodt /Vimeo

Planet: bottom of a glass containing half and half, water, food coloring. Moons: bottom of a glass containing coconut milk, water, food coloring. Stars: salt, cinnamon, baking powder, Tums. Navid Baraty hide caption

itoggle caption Navid Baraty

Spider Martin's most well-known photograph, Two Minute Warning, shows marchers facing a line of state troopers in Selma moments before police beat the protestors on March 7, 1965. The day became known as Bloody Sunday. Spider Martin/Courtesy Tracy Martin hide caption

itoggle caption Spider Martin/Courtesy Tracy Martin