National Arboretum
Serves as a living museum where trees, shrubs, and herbaceous plants are cultivated for scientific and educational purposes.
National Mall
Presents the ideal stage for national expressions of remembrance, observance and protest, and serves as one of the most heavily visited and photographed places in the world. View the "Volunteer" link on the National Mall's website.
Protects and enhances the natural, scenic, recreational, and historical qualities of the Potomac River and its watershed lands.
Provides a place to play soccer, tennis, picnic, hike, bike, in-line skate, fish, horseback ride, listen to a concert, or attend programs hosted by park rangers.