Cheetahs can be seen engaged in natural behaviors in a grassland setting similar to their natural savanna habitat.

This gallery features the emergence of air power in World War I and reexamines the reality and  the romantic image of this war.

Examines the exchange of plants and seeds between the Old and New Worlds following Columbus's discovery of America in 1492.

This exhibition reveals how Thomas Edison's incandescent electric light bulb and other inventions transformed our world. 

Jointly prepared by the Smithsonian and the Soviet Academy of Sciences, the exhibition presents the cultures of Alaska and Siberia from the end of the Ice Age Era to modern times.

The Mary Livingston Ripley Garden comprises  more than 200 varieties of plants in hanging baskets, borders, and raised serpentine beds flanking an unusual curvilinear walkway.

The experiences of Japanese Americans during WWII; decision-making and citizen action under the U.S. Constitution.

A 4.2-acre rooftop park, named for its donor, features an embroidered parterre in a geometric design of plants and flowers rotated seasonally.

This exhibition is home to dozens of invertebrate species -- the most abundant creatures on earth -- from sea stars to spiny lobsters, to giant African millipedes, to tarantulas, to a giant Pacific octopus.

This gallery traces the development of technology for viewing Earth from balloons, aircraft, and spacecraft.

Most species in the Zoo's Small Mammal House are no bigger than a breadbox.

On view are 15 exquisitely crafted gifts from Thai monarchs to the United States and to U.S. presidents.

All of the old favorites are on view in the exhibition hall -- Diplodocus, T. rex, and Triceratops -- and more.

This exhibition is home to western lowland gorillas and orangutans.

Soft-bodied and hard-shelled animals, tall sponges, and algae offer a rare glimpse into the earliest explosion of animal life more than 500 million years ago, including the famous Burgess Shale.

This exhibition highlights the history and achievements of planetary exploration, both Earth-based and by spacecraft.

This exhibition traces NASA's manned space program from 1961 to 1972.

This gallery features famous airplanes and spacecraft that exemplify the major achievements in the history of flight.

The story of World War II is too big for a single gallery, so this one focuses on land-based fighter aviation.