Established in 1872 and designed in collaboration with landscape architect Frederick Law Olmsted, the Arnold Arboretum is a National Historic Landmark. Founded as a partnership between the City of Boston and Harvard University, the Arnold Arboretum is a unique blend of a respected research institution and beloved public park in Boston's Emerald Necklace. Occupying 281 acres, its living collection of trees, shrubs, and woody vines is recognized as...