Rockville Memorial Day festivities

The city of Rockville closes out its Hometown Holidays festival with a concert by the Rockville Band and Chorus as well as a Memorial Day ceremony and parade, featuring Chris Day, a Rockville native who served two tours in Afghanistan, as grand marshal.

At 9 a.m. Rockville Town Square, North Washington Street and Middle Lane. 240-314-8620. .


Writer’s workshop

Works by participants in the NYU Creative Writing Program are featured in a reading. Selected authors include Eric Fair, Matt Gallagher, Matthew Mellina, Perry O’Brien and Roy Scranton.

At 6 p.m. Kennedy Center Millennium Stage, 2700 F St. NW. 202-467-4600. .


Pop quiz

Test your knowledge of Hollywood’s Golden Age at the National Portrait Gallery, which will host a multimedia trivia game inspired by the museum’s collection.

At 6:30 p.m. National Portrait Gallery, Kogod Courtyard, Eighth and F streets NW. 202-633-1000. .


Herndon Festival

A fun-filled weekend kicks off with music by Melodime and Chopteeth Afrofunk Big Band as well as carnival rides, food vendors and a fireworks display at 9:30 p.m.

At 6 p.m. Herndon Town Green, 777 Lynn St., Herndon. 703-787-7300. .


Girl Scouts display

The National Museum of American History marks the 100th anniversary of the Girl Scouts by opening an an exhibit called “Girl Scouts 1912–2012,” which looks at the group’s history through uniforms, camping and more.

Through the end of the year. National Museum of American History, 14th Street and Constitution Avenue NW. 202-633-1000. .


Honoring the past

Fort Ward Park honors “The Fort,” a community of African Americans who, after the Civil War, settled the land used by the Union Army. Visitors will get a preview of new interpretive signage and remarks about the people who lived there.

From 1 to 4 p.m. Fort Ward Park, 4301 W. Braddock Rd., Alexandria. 703-746-4848. .


Washington Folk Festival

Glen Echo Park plays host to a festival of more than 450 musicians, dancers, storytellers and crafters from across the region. The festival will focus on international culture as well as traditional American blues, bluegrass and old-time string bands.

Saturday and Sunday from noon to 7 p.m. Glen Echo Park, 7300 MacArthur Blvd., Glen Echo. .

— Brandon Weigel