"Founded as a public partnership between the City of Boston and Harvard University, this “living museum of plants” occupies 281 acres of land upon which grow 15,000 trees, shrubs, and vines that have been documented for research and education by Harvard students, faculty, Arnold Arboretum scholars, and visiting scholars from around the world. It’s free, open to the public 365 days a year, and has a jaw-droppingly beautiful collection of seasonal flowers, fruits, and foliage to view. There are free, guided, 90-minute tours on Saturdays, Mondays, and Thursdays at 10:30 AM, and Sundays at 1:00 PM, in addition to other seasonal walks and family activities coordinated through its visitor center." - MATADOR_NETWORK