Free Museums in Washington DC

The most-visited natural history museum in the world, with over 148 million specimens. Kids love the Hope Diamond, dinosaur hall, live butterfly pavilion (separate small fee), insect zoo, and ocean hall. The Discovery Room offers hands-on activities for families. Free admission, no tickets required.

Home to the Wright Brothers' 1903 Flyer, Apollo 11 command module, and Space Shuttle Discovery (at Udvar-Hazy annex). Currently undergoing multi-year renovation with about half the museum open, featuring eight all-new galleries and a renovated planetarium. Free admission but timed-entry passes are required — reserve up to 2 months in advance.

A 163-acre zoo with over 2,100 animals from 390 species, including giant pandas, elephants, great apes, and big cats. The Kids' Farm lets children get close to farm animals. Completely free, but all visitors (including babies) must register for advance entry passes online. Accessible via Woodley Park-Zoo Metro station.

Home to the original Star-Spangled Banner, Dorothy's ruby slippers, Julia Child's kitchen, and the First Ladies' gowns. The Wegmans Wonderplace is a free interactive play space for kids ages 0-6. Spark!Lab lets older kids invent and build. Free admission, no passes needed.

A free, interactive museum dedicated to language and words. Kids can sing karaoke, create poetry, explore word origins, and play language games across multiple floors. General admission is free with a suggested $15 donation. Reserve a pass in advance online to guarantee entry. Closed Tuesdays.

Over 141,000 works of Western art across two buildings connected by an underground walkway that kids love. Always free — admission, daily one-hour guided tours, weekend film screenings, and family programs. First Saturdays feature free art-making, films, and pop-up activities. The Sculpture Garden has a fountain for wading in summer and ice skating in winter (~$10). Jazz in the Garden runs Friday evenings in summer with live music and a sangria cart.

A free hidden gem with 300+ miniature trees across three pavilions inside the 446-acre U.S. National Arboretum. Kids activity pamphlet available in the Exhibits Gallery. The Arboretum grounds feature the Capitol Columns (22 original Corinthian columns from the US Capitol), a koi pond, and open meadows. Rarely crowded. No Metro access — drive or rideshare. Pack a picnic as food options are limited. Combine with nearby Kenilworth Aquatic Gardens (also free) for a full day.

The theatre where Lincoln was assassinated, still an active performance venue. Free with advance timed-entry reservation. The basement museum displays the Derringer pistol, Lincoln's coat, and Booth's diary. Includes access to Petersen House across the street where Lincoln died. Same-day tickets released at 8:30am online and go fast on busy days. No large bags or food/drink inside.

The largest library in the world, with stunning Beaux-Arts architecture in the Thomas Jefferson Building that awes kids and adults alike. The Great Hall and Main Reading Room viewing gallery are must-sees. Thomas Jefferson's personal library is on display. Free one-hour tours Monday through Saturday. Combine with a Capitol building visit next door (free, book through your representative).

World-class art museum on the National Mall with two buildings: the neoclassical West Building (European masters from the Middle Ages through the 19th century, including the only Leonardo da Vinci painting in the Americas) and the modern East Building (20th and 21st century art). The outdoor Sculpture Garden hosts jazz concerts in summer and an ice rink in winter. Completely free admission.