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Stereographs are devices capable of building a three-dimensional​ image out of two photographs that have about two and a half inches difference between them so that it could imitate the two eyes’ real field of view. Combining these images into a single one with the help of stereoscope, a person can experience the illusion of the image’s depth.
Stereoscope uses the same principle as in human binocular vision. Our eyes are separated by about two inches, so we see everything from two different angles. When the brain combined those views in a single picture, we get the spatial depth and dimension. Stereographs were extremely popular between 1850 and 1930 all around the world. Millions of stereographs were made during that time. There was a broad range of themes: landscape, travel, historical moments, nature disasters, architecture and many others.
Nowadays, simply launch this collection full screen and put your mobile device in Google Cardboard Viewer.
[Buildings at the Fairmount Water Works, Philadelphia, Pennsylvania],
4,774 Media in collectionpage 1 of 48

New Pennsylvania Hospital for the Insane, building, Pa.

Stereograph showing the Pennsylvania Hospital for the Insane under construction, with many workers posing in foreground.

[The car of history clock at the U.S. Capitol]

Photograph shows Carlo Franzoni's 1819 marble sculpture of Clio, the Muse of History, standing in a winged chariot, atop a clock.

Military on Broadway

Photograph shows soldiers resting during a parade; spectators line the street and some men watch from a tree.

Main Street, Germantown

Photograph shows street in Germantown, Philadelphia, Pennsylvania.

Prince of Wales and suite

Photograph shows the Prince of Wales and his suite.

American Fall and ice mountain

People and horse on ice, Niagara Falls, New York.

[East Capitol Street as it was] / by W.M. Chase.

Bird's-eye view of the east Capitol grounds, including the Greenough statue of George Washington, and East Capitol Street taken from the dome of the U.S. Capitol.

Reception of the Prince of Wales

Military reception at the Battery, New York, New York.

Cave of the Winds, Niagara

Man standing by bridge at lower part of waterfalls, Cave of the Winds, Niagara Falls.

Moon-light point view

Moonlight view of Niagara Falls.

The twelfth regiment "laying off" in the Navy Yard barracks at Washington

Stereograph showing soldiers from the 12th regiment relaxing in the barracks, most out of uniform and some sitting on their bunks.

War views -- Army of the Potomac -- the way they cook dinner in camp

Photograph shows five Union soldiers, including one African American soldier, sitting and eating in front of tents.

Cathedral of Saint Peter and Saint Paul

Interior of Cathedral of Saint Peter and Saint Paul, Philadelphia, Pennsylvania.

Cathedral of Saint Peter and Saint Paul

Interior of Cathedral of Saint Peter and Saint Paul, Philadelphia, Pennsylvania.

View on B'way

Busy street scene on Broadway, New York City.

Cathedral of Saint Peter and Saint Paul

Exterior of Cathedral of Saint Peter and Saint Paul, Philadelphia, Pennsylvania.

Gen. Lee's headquarters

Robert E. Lee's headquarters, Gettysburg, Pennsylvania.

Atlantic Building, [Providence, Rhode Island]

Stereograph showing Atlantic Building, Providence, Rhode Island, with tenants Economical Mutual Life Insurance Co., Atlantic Fire & Marine Insurance Co., First National Bank, Cranston Savings Bank, and Nickerso... more

Evacuation of Port Royal, Va., May 30, 1864

Horses on bank as United Army personnel cross pontoon bridge onto waiting boats.

Handel and Hayden Hall occupied by the Union Business College of Philadelphia

Photograph shows students attending class at Union Business College, now named Peirce College, in Philadelphia, Pennsylvania.

Standing Buffalo, Winnebago

Standing Buffalo, full-length portrait, standing, facing right, holding musket.

Smith's Island, Phil.

Photograph shows the swimming pool on Smith's Island, a popular 19th century resort area in Philadelphia, Pennsylvania.

Gray Wolf, Chief of Winnebagoes

Gray Wolf, full-length portrait, seated, facing left, holding rifle.

Cape San Blas

Stereograph shows Cape San Blas Lighthouse with attached house.

Railroad cut

Field at Gettysburg with fences.

Dog Island L.H.

Stereograph shows Dog Island Lighthouse with adjacent structure.

A letter from home - on the Allenkaket River, Alaska

Man sitting outside tent(?) reading letter, shotgun across his lap, and a dog sitting at his feet.

Iron Bear, Chief of Rees, Fort Berthold

Photograph shows Chief Iron Bear in a full-length portrait, seated, facing front, at Fort Berthold, North Dakota.

Interior of Library of Congress

Stereograph showing an interior view of the Library of Congress with reading room and stacks in the U.S. Capitol building.

U.S. Observatory

Photograph shows the Old Naval Observatory, Foggy Bottom, Washington, D.C.

Minot's Ledge Light

Stereograph shows art reproduction of Minot's Ledge Lighthouse with large waves crashing against it.

View of the S.W. Pass Lighthouse in April 1867

Stereograph shows the first lighthouse built at Southwest Pass Entrance, Louisiana; also shows keeper's house and boardwalk path.

Winnebago squaws

Two Winnebago women with infant in cradleboard across their knees.

The White House

Three people stand on path just beyond west wing of White House.

Winnebago squaw

Winnebago woman, full-length portrait, standing, facing front, wrapped in blanket with child on her back.

The One Horn. Winnebago

Winnebago man, half-length portrait, seated, facing slightly left.

Standing Buffalo. A celebrated dancer. Winnebago / photograph by W.H. Illingworth.

Standing Buffalo, full-length portrait, seated, facing slightly right.

Winnebago camp scene

Several people on hillside huddle around simmering pot.

Santee Sioux women

Two Santee Sioux women, full-length portraits, seated, facing front, wrapped in blankets.

The Council of War

Photograph shows statuette by John Rogers depicting Abraham Lincoln, Ulysses S. Grant, and Secretary of War Edwin M. Stanton in a grouping.

The one that walks behind

Winnebago woman, three-quarter length portrait, seated, facing slightly left.

Bridge, N.Y.

Stereograph showing a man and woman in the foreground and High Bridge in the background, from the east side.

South Sea Conchological Co.

Two men in booth selling conch shells.

General Wood transferring Cuba's government and delivering President Roosevelt's letter to President Palma, May 20, 1902, Palace, Havana

Stereograph shows Gov. Leonard Wood handing letter to President Tomás Estrada y Palma in a crowded room.