Large collection of lantern slides of American buildings and landscapes built during the period 1850-1920. Source materials for this collection come from Harvard's Graduate School of Design. Included is the work of Harvard faculty Frederick Law Olmsted, Bremer W. Pond, and James Sturgis Pray, as well as that of other landscape architects throughout the country. The collection offers views of cities, buildings, parks, and gardens, including Boston's Park System.