The great ball-room, March 4 1889, Washington, D.C., U.S.A.

Benjamin Harrison (August 20, 1833 – March 13, 1901) was an American politician and lawyer who served as the 23rd President of the United States from 1889 to 1893. He was the grandson of the ninth president, William Henry Harrison. Before ascending to the presidency, Harrison established himself as a prominent local attorney, Presbyterian church leader, and politician in Indiana. During the American Civil War, he served the Union as a colonel and later a brevet brigadier general. He was later elected to the U.S. Senate by the Indiana legislature. A Republican, Harrison was elected to the presidency in 1888, defeating the Democratic incumbent Grover Cleveland after conducting one of the first "front-porch" campaigns by delivering short speeches to delegations that visited him in Indianapolis. "We Americans have no commission from God to police the world."

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.