Photographer Jonathan Blair, his wife Arlene, and a guest are silhouetted by gas lamps as they pose in the openings of a cave home in Cappadocia, Turkey. The couple lived in the cave for a month, following in the footsteps of habitants who have settled here for centuries.
PHOTOGRAPH BY JONATHAN BLAIR, NAT GEO IMAGE COLLECTION
A Han teacher calls out the correct answer in Chinese at a Uyghur high school in Azak, Xinjiang, China. Recent media investigations show that the Chinese government have targeted Uyghurs—a Muslim minority people group—for mass detentions and even forced birth control.
PHOTOGRAPH BY CAROLYN DRAKE, NAT GEO IMAGE COLLECTION
A woman dances at a Berber wedding celebration in Taarart, Morocco. Berbers are an ethnic group native to northern Africa, and most Moroccans claim Berber descent—even though the government systematically denies their identity.
PHOTOGRAPH BY ALEXANDRA BOULAT, NAT GEO IMAGE COLLECTION
Trick-or-treaters take a snack break in Medellín, Colombia. Once considered the most dangerous city in the world, Medellín's homicide rate dropped 80 percent between 1991 and 2014.
PHOTOGRAPH BY MEREDITH DAVENPORT, NAT GEO IMAGE COLLECTION