Daily; gate locks at 5pm
Green Spring Gardens · Washington
A Fairfax County public garden. There's no entry fee for individuals or families; the gate locks at 5pm.
Verified Oct 27 · fairfaxcounty.gov
No catch
Visitor center through Nov 30: weekdays except Tue 9am–5pm, weekends 12–5pm
Huntley Meadows Park · Washington
A Fairfax County park with a nature visitor center. No entry fee for individuals or families. Through November 30 the Norma Hoffman Visitor Center is open weekdays (except Tuesday) 9am–5pm and weekends noon–5pm.
Verified Oct 27 · fairfaxcounty.gov
No catch
Grounds daily 7:30am until 20 minutes after sunset
Monocacy National Battlefield Visitor Center · Frederick
Explore a Civil War battlefield in Frederick. There's no fee for the battlefield, visitor center or museums. Grounds are open daily from 7:30am until 20 minutes after sunset.
Verified Oct 27 · National Park Service
No catch
Hours vary by area; check the park before you go
Chesapeake and Ohio Canal National Historical Park · Washington
The C&O Canal park covers 184.5 miles of historic canal and towpath for walking, running and biking. The park is free to visit everywhere except the Great Falls Tavern area in Potomac, MD, which needs an entrance pass.
Verified Oct 27 · National Park Service
No catch
Daily during daylight hours
Rock Creek Park · Washington
A national park in the city with a nature center and planetarium. There's no entrance fee; the park is open during daylight hours. Metered parking applies at Thompson Boat Center.
Verified Oct 27 · National Park Service
No catch
Open year-round (closed 3 days a year)
Kenilworth Park & Aquatic Gardens · Washington
A National Park Service water garden along the Anacostia River with ponds, trails and winter birding; famous for its lotus blooms in summer. No entrance pass or fee, and it's open year-round except three days a year.
Verified Oct 27 · National Park Service
No catch
Daily 10am–6pm (closed New Year's Day, Easter, July 4, Thanksgiving, Christmas)
Torpedo Factory Art Center · Alexandria
A former munitions plant on the Alexandria waterfront with three floors of working artists' studios and galleries you can walk through, plus the Alexandria Archaeology Museum on the third floor. Open and free to the public. Artists keep their own studio hours, and the building sometimes closes at 5pm for private events.
Verified Oct 27 · torpedofactory.org
No catch
Daily 10am–5:30pm, last entry 5pm (closed Thanksgiving and Christmas)
National Archives Museum · Washington
See the Declaration of Independence, the Constitution and the Bill of Rights in the Rotunda, plus the museum's exhibits. Admission is free and tickets aren't required; you can reserve free general admission tickets, or pay $1 for an optional timed-entry ticket to skip the line.
Verified Oct 27 · visit.archives.gov
No catch
Open 24 hours; rangers on duty 9:30am–10pm daily
National Mall and Memorial Parks · Washington
The monuments and memorials of the National Mall are free to visit 24 hours a day. Park rangers are on duty 9:30am–10pm to answer questions and lead talks and walks, and all ranger activities are free.
Verified Oct 27 · National Park Service
No catch
First Saturday of each month, 10am–3pm
National Gallery of Art, East Building · Washington
On the first Saturday of the month the East Building turns into a free festival: a kids' play space, bilingual storytime, drop-in artmaking, face painting and children's yoga. Most activities are first come, first served; a few need registration. Next dates: November 7 and December 5, 2026. The January 2, 2027 festival is canceled.
Verified Oct 27 · nga.gov
No catch
Tuesdays, 10am–1pm (not Dec 29)
National Gallery of Art, East Building · Washington
A weekly hands-on space for the youngest art lovers to play, build, sort and stack in the East Building atrium. It's free, there's no registration, and you can drop in any time during the session. Children must be with an adult. No session on December 29, 2026.
Verified Oct 27 · nga.gov
No catch
Conservatory daily 10am–5pm; outdoor gardens 7:30am–5pm (closed Dec 25)
U.S. Botanic Garden · Washington
A living plant museum: a conservatory with desert, tropical and orchid collections, plus the National Garden outdoors and Bartholdi Fountain across the street. Admission is free and no tickets are needed.
Verified Oct 27 · usbg.gov
No catch
Haupt Garden dawn to dusk daily (closed Dec 25); other gardens 24 hours
Smithsonian Gardens · Washington
The Smithsonian's public gardens surround the museums on and near the Mall. The Enid A. Haupt Garden is open dawn to dusk; the other outdoor gardens are open 24 hours. Free, no passes needed.
Verified Oct 27 · si.edu
No catch
Daily 8am–4pm through Mar 14 (8am–6pm Mar 15–Sept 14); last entry 1 hour before closing; closed Dec 25
Smithsonian's National Zoo · Washington
More than 2,100 animals across 163 acres in Rock Creek Park, including Asian elephants, Sumatran tigers and orangutans. Entry is free but everyone needs a free entry pass. Winter hours run 8am–4pm until March 14, with last entry an hour before closing.
Verified Oct 27 · si.edu
Catch: Free entry pass required: get one online before you go
Daily 10am–5pm (closed Dec 25)
Anacostia Community Museum · Washington
The Smithsonian's museum of urban community history and culture, in Southeast DC. Free admission with no passes needed, open daily.
Verified Oct 27 · si.edu
No catch
Daily 10am–5:30pm (closed Dec 25)
Steven F. Udvar-Hazy Center · Washington
The Air and Space Museum's Virginia site holds aircraft and spacecraft in an open, hangar-like setting. Admission is free and no passes are needed.
Verified Oct 27 · si.edu
No catch
Daily 11:30am–7pm (closed Dec 25)
National Portrait Gallery · Washington
America's story told through portraiture and biography, in the same building as the American Art Museum. Free, no passes needed, open daily until 7pm.
Verified Oct 27 · si.edu
No catch
Daily 10am–5:30pm (closed Dec 25)
National Postal Museum · Washington
America's mail history and the art of stamp collecting. Free admission with no passes needed, open daily.
Verified Oct 27 · si.edu
No catch
Daily 10am–5:30pm (closed Dec 25)
National Museum of the American Indian · Washington
Honoring Native heritage, history and voices, on the National Mall. Free admission, no passes needed, open daily.
Verified Oct 27 · si.edu
No catch
Daily 10am–5:30pm (closed Dec 25)
National Air and Space Museum · Washington
See the 1903 Wright Flyer, the Apollo 11 command module and other icons of flight and space on the National Mall. Entry is free but you need a free timed-entry pass.
Verified Oct 27 · si.edu
Catch: Free timed-entry pass required: reserve ahead
Tue–Sun 10am–5:30pm, Mon 12–5:30pm (closed Dec 25)
National Museum of African American History and Culture · Washington
American history through an African American lens, from Harriet Tubman's shawl to Nat Turner's Bible. Admission is free with a timed-entry pass. Opens at noon on Mondays (10am on federal holidays).
Verified Oct 27 · si.edu
Catch: Free timed-entry pass required: reserve ahead
Daily 9am–5pm; walk-up ticket window opens 8:45am (closed July 4, Dec 25, and Nov 4 and Dec 8, 2026 for maintenance)
Washington Monument
Ride to the top of the 555-foot Washington Monument for views across DC. There's no admission fee: free same-day timed tickets are handed out at the Washington Monument Lodge on 15th Street from 8:45am until they run out, and one person (16+) can get up to six. Lines form well before the window opens. Advance tickets on Recreation.gov carry a $1 fee per ticket.
Verified Oct 27 · National Park Service
Catch: Free only with same-day walk-up tickets at the Lodge (ages 2+): first come, first served; they often run out · Booking online ahead isn't free: a $1 reservation fee per ticket