Tucked between Palisades and Woodley Park, you can find Battery Kemble Park. It was formerly the site of a Civil War-era encampment where Union soldiers staked out to defend the city from Confederate raids. Now, it's a peaceful plot of land, great for relaxing and dog-walking.

The more than 100-year-old Dumbarton Oaks estate in Georgetown offers a blissful garden designed by Beatrix Farrand, who also helped design the White House's East Colonial Garden and West Garden. New greenhouses are planned for the estate.

Montrose Park, also located in Georgetown, was once home to rope-making tycoon Richard Parrott, who would allow others to picnic on the grounds. The federal government bought the property in 1911 to turn it into a park.

In Kalorama, you can find this park and longtime neighborhood amenity outfitted with a fountain, a fenced-in garden, and an area for dogs.

Just off 16th Street NW in Columbia Heights, Meridian Hill Park provides a serene escape from the bustle of the city. It features a central water cascade, lots of trees and benches, and impressive statues of Joan of Arc, Dante, and President James Buchanan.

You can find the Brewmaster's Castle, otherwise known as the Heurich House, right in Dupont Circle. This underrated museum hosts beer-focused events, often in its a grassy rear courtyard.

This serene park is located in the middle of alleys and rowhouses in Bloomingdale. It was named after a black man who was killed during the Boston Massacre in 1770 and is said to be the first casualty of the American Revolution.

At the Smithsonian’s National Museum of Natural History along the National Mall, this butterfly garden houses roughly 300 butterflies in a climate-controlled environment. The butterflies represent species from around the world.

After peeking at the Smithsonian Castle, head over to the adjacent Enid A. Haupt Garden. This 4.2-acre space was designed to be a modern representation of American Victorian gardens and opened in 1987.

Enjoy waterside views and the sight of planes taking off from Reagan National Airport at Hains Point, situated at the confluence of the Potomac and Anacostia rivers. Biking, running, and picnicking are common activities here.

This site is a must-see for horticulture lovers. Tour the 1933 greenhouse, with its roughly 29,000 square feet of growing space.

In Navy Yard, The Yards Park offers a water feature, a bridge, and green space. It often hosts outdoor events like yoga and concerts.

The National Arboretum gives visitors a chance to see some D.C.' history: the original columns from the East Portico of the U.S. Capitol. This sprawling green space also hosts a bonsai garden and a wide variety of other fauna.

One of the best bird-watching locations in Washington, D.C., is located in Anacostia Park. This 1,200-acre green space features spaces for picnicking, basketball, and tennis. There is also a pavilion where you can roller-skate.

Located in Northeast, Marvin Gaye Park stretches 1.6 miles. It commemorates the Motown hero and D.C. native with a mosaic.