This unique museum is a bit of a Boston hidden gem. The museum was founded by its namesake and as part of her will no part of the museum can be changed from the layout she created.
The Arnold Arboretum is part of Boston's Emerald Necklace, a chain of parks through the city. From the top of Bussey Hill there is a view of the Boston skyline. Katie used to live across the street and it's one of her favorite places in the city.