The FRESHFARM Dupont Circle Market is located in the heart of one of Washington, DC's most vibrant and diverse neighborhoods. Washingtonian magazine credits the market with "teaching Washingtonians to love their fruits and vegetables."
The National Zoological Park, commonly known as the National Zoo, is one of the oldest zoos in the United States. It is part of the Smithsonian Institution and does not charge admission. You're in DC for the weekend; might as well go see the pandas.