The Golden Age of Stereoviews
1860s and 70s
Most views were aimed at tourists and the curious, and at collectors, who were often both. Cards could be bought at the sites (Niagara Falls for an obvious example, but at a cave entrance, or a train stop with a view of a tree) or at emporiums, which were like book stores that carried stereographs (as they were called back then) gathered from all these different kinds of sites. Most of the views are from my own collection, past or present. See the main page: The Stereoview
The most famous and collectible of these then as well as today involved important themes: trains, Indians, the Civil War (which was 1861-1865, after all), and disasters (early photojournalism, in its own way, shot and distributed widely and fairly quickly). A few starting examples:

















