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Theodore Roosevelt Rotunda

Theodore Roosevelt Rotunda

Known to most visitors as the Museum's grand entrance, the Theodore Roosevelt Rotunda is an interior New York City landmark.

At its center, the Theodore Roosevelt Rotunda features an iconic dinosaur exhibit: a dramatic representation of an imagined prehistoric encounter: a Barosaurus rearing up to protect its young from an attacking Allosaurus. The Barosaurus skeleton, which is the tallest freestanding dinosaur mount in the world, is composed of replica bones cast from actual fossils, which would be too heavy to support in this fashion. As part of the restoration of the Theodore Roosevelt Memorial, this display mount was divided in two, allowing visitors to walk between the famous combatants for the first time. 

Quotations from Theodore Roosevelt’s writings are displayed on four walls under the headings Youth, Manhood, Nature, and The State. Three monumental canvases depicting milestones in Theodore Roosevelt’s public life, completed in 1935 by William Andrew Mackay, returned to view in October 2012 after extensive conservation. They are some of the largest indoor murals in a New York City public building, covering an area of more than 5,200 square feet.

The west mural, which hangs above the entrance to the Akeley Hall of African Mammals, depicts Roosevelt’s African expeditions in 1909 and 1910. The south mural illustrates the signing of the Treaty of Portsmouth in 1905 to end the Russo-Japanese War; for his role in resolving the conflict, Roosevelt was the first American awarded the Nobel Peace Prize.

The north mural portrays the building of the Panama Canal. Roosevelt is shown conferring with Chief Engineer John F. Stevens; next to Stevens, an army medical officer is depicted holding a test tube, an emblem of scientific research. As yellow fever swept Panama, Roosevelt lent his support to then-controversial findings that the mosquito, and not poor sanitation, spread the disease, saving thousands of lives. On the far right is a depiction of Roosevelt’s arduous expedition to map Brazil’s River of Doubt in 1914, on which he was accompanied by Museum naturalists. 

Hall Highlights



Reenacting a hypothetical drama between predator and prey, the Museum's popular Barosaurus display shows the enormous plant-eating dinosaur rearing up to protect its young against an attacking Allosaurus.

DF_120920_6707-TR Rotunda overview

Milestones in Public Life

The hall's three murals depict Roosevelt's leadership in building the Panama Canal; his role in negotiating the 1905 Treaty of Portsmouth between Russia and Japan, for which he became the first American to win the Nobel Peace Prize in 1906; and his 1909-1910 expedition to Africa.

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Roosevelt, Writer

In this room, part of New York State's official memorial to Theodore Roosevelt, aphorisms inscribed on the walls reflect his thoughts on nature, youth, manhood, and the state. A prolific writer, Roosevelt published dozens of books on natural history, American history, his outdoor adventures, and more. 

Theodore Roosevelt Rotunda

American Museum of Natural History

Central Park West at 79th Street
New York, NY 10024-5192
Phone: 212-769-5100

Open daily from 10 am-5:45 pm
except on Thanksgiving and Christmas
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