More on outdoor activities.
US Botanic Garden
The gleaming glass-walled conservatory building is a beautiful home for this “living plant museum.” Microclimates, such as desert, oasis, and jungle, reveal the variety and beauty of plant adaptations. Don’t miss the primitive ferns and other plants dating back 150 million years. Outside is the variegated National Garden with an environmental learning center (see US Botanic Garden).
Enid A. Haupt Garden
This “rooftop” garden is inspired by the ...