The world was drastically reduced in scale as it entered nineteenth- and early twentieth-century homes (1850–1920) through stereoscopes. The stereo image was always miniature. Its size was a topic of concern in the nineteenth century, yet the significance of scale to stereoscopy has not been substantially researched within the field of early popular visual culture. The miniature quality of the stereoscopic spectacle is approached in terms of contemporary and nineteenth-century perspectives. This exploration raises the issue of whether a connection can be drawn between dimension and standardization that was characteristic of stereography as the first photographic mass medium. This potential link between the miniature and the establishment of standards is traced through nineteenth-century stereographs of two cities, New York and Constantinople (Istanbul).