HAWAII: S.S. HALEAKALA. The S.S. Haleakala, a steamship carrying tourists between the Hawaiian Islands. Photograph, early 20th century.

MARTIN LUTHER KING, JR. (1929-1968). American cleric and civil rights leader. King (right) being booked by Lieutenant Drue H. Lackey of the Montgomery, Alabama, Police Department, for his role in leading a boycott of segregated city buses, 23 Febru...

KOHLER STRIKE, 1934. Former Governor Walter J. Kohler of Wisconsin, head of the plumbing manufacturing company at Kohler, Wisconsin, is allowed entry to his office during a strike by the employees, July 1934.

TRANSIT OF MERCURY, 1753. The transit of Mercury across the sun, as observed by Benjamin Franklin, 1753.

EGYPT: NILE SCENE. Sunset over the Nile River in Nubia, Egypt. Photographed c1970.

ST. LOUIS: FREIGHT YARD. Twilight view of a freight yard near a grain storage facility in St. Louis, Missouri. Photographed c1974.

CONGO: CONGO RIVER. Sunset on the Congo River near Kinshasa, Zaire (Democratic Republic of the Congo). Photographed in 1974.

COCONUT PALMS (Cocos nucifer) at sunset. Gilbert Islands, Micronesia.

TURNER: PETWORTH LAKE. Petworth Lake at Sunset. Oil on canvas, c1829, by Joseph Mallord William Turner.

ST. LOUIS: SKYLINE. Twilight view of the St. Louis, Missouri, skyline on the Mississippi River. Photographed c1974.

CONGO: CONGO RIVER. Sunset on the Congo River near Kinshasa, Zaire (Democratic Republic of the Congo). Photographed in 1974.

MISSISSIPPI RIVER: SUNRISE. Waters of the Mississippi River reaching flood level at sunrise, near Louisiana, Missouri (Pike County). Photographed c1974.

MINNESOTA: LAKE ITASCA. A view of the headwaters of the Mississippi River at Lake Itasca, Minnesota, at sunrise. Photographed c1974.

MISSISSIPPI RIVER: FISHING. A man seated between fishing poles beside the Mississippi River in St. Louis, Missouri, near sunset. Photographed c1974.

IRAQ: SUNSET, 1932. Sunset along a river in Iraq. Photograph, 1932.