Guides by Lonely Planet
United States National Arboretum
The greatest green space in Washington unfurls almost 450 acres of meadowland, sylvan theaters and a pastoral setting that feels somewhere between bucolic Americana countryside and a classical Greek ruralscape. Highlights include the Bonsai & Penjing Museum (exquisitely sculpted mini trees), the National Herb Garden (lots of hot peppers) and the otherworldly Capitol Columns Garden (studded with Corinthian pillars that were once part of the Capitol building). All are near the R St entrance.