Images

A still from the award-winning documentary film made by Thor Herydahl (1914-2002) of his 1947 Kon-Tiki expedition when he and five others crossed the Pacific Ocean from Peru to Polynesia on a balsa-wood raft.

A side view of the Kon-Tiki expedition raft which Thor Heyerdahl (1914-2002) and his crew used to cross the Pacific Ocean from Peru to Polynesia in 1947. The raft was made from traditional materials like balsa-wood logs, bamboo, and coconut...

A front view of the Kon-Tiki expedition raft which Thor Heyerdahl (1914-2002) and his crew used to cross the Pacific Ocean from Peru to Polynesia in 1947. The mask on the sale is a representation of the Sun god Kon-Tiki painted by expedition...

A 1947 photograph of the Kon-Tiki expedition raft taken from an attached dinghy as the raft crosses the Pacific Ocean on its way from Peru to Polynesia.

This infographic illustrates seven crucial vaccines, biological preparations that train the immune system to recognize and fight harmful pathogens, preventing disease without causing illness. Throughout history, they have saved millions of...

A coyote communicates with other animals at Rocky Mountain Arsenal National Wildlife Refuge by howling. Photograph by USFWS (US Fish and Wildlife Service), 2011.

Quanah Parker, prominent chief of the Comanche Indians with a feather fan. National Archives and Records Administration, Washington, D.C.

Two Zuni girls, photographed by Edward S. Curtis, c. 1926, published in The North American Indian. Library of Congress, Washington, D.C.

She-we-na (Zuni Pueblo). Kachina doll (Paiyatemu), made of wood, pigment, horsehair, feathers, wool, hide, cotton, tin, ribbon, 22 1/2 x 9 x 8 in. (57.2 x 22.9 x 20.3 cm), from Zuni, New Mexico, late 19th century. Brooklyn Museum, Museum...

Men work on the construction of the Erie Canal in Scotia, New York. While the exact date of this photograph is unknown, the construction of the canal took place between 1817 and 1825. The original Erie Canal was 363 miles (584 km) in length...