In merging hydraulic engineering with landscape design, Olmsted helped to redefine the role of public space in urban areas. Join the Frederick Law Olmsted National Historic Site staff as we explore how sanitation – and imagination – helped create the Back Bay Fens. Note: This is Veterans Day observed. Meets at the Shattuck Visitor Center, 125 The Fenway, Boston. For more information visit https://www.nps.gov/frla/special-events.htm