Tucked away behind the Smithsonian Castle, you'll find a stunning 4-acre oasis that feels like a secret garden in the heart of the city. It’s the perfect spot to escape the bustle of the National Mall, with themed areas like the Asian-inspired Moongate Garden and the formal Victorian parterre. Whether you're catching the magnificent magnolia blooms in early spring or just seeking a quiet bench in a beautiful setting, this garden is a true local treasure.