What is the name of the 4.2 acre public garden in the Smithsonian complex, adjacent to the Smithsonian Castle on the National Mall in Washington?
National Mall The National Mall is a national park in downtown Washington, D.C., the capital of the United States. The National Park Service (NPS) of the U.S. Department of the Interior administers the National Mall, which is part of its National Mall and Memorial Parks unit.
Nemours Mansion and Gardens The Nemours Mansion and Gardens is a 300 acre country estate with jardin à la française formal gardens and a classical French mansion in Wilmington, Delaware. Built to resemble a château, its 105 rooms on five floors occupying nearly 47000 sqft . It shares the grounds with the Alfred I. duPont Hospital for Children, both owned by the Nemours Foundation at 1600 Rockland Road. The estate is part of the DuPont legacy and is located on the DuPont Historic Corridor.