- Georgetown Galleries on Book Hill will host a Fall Art Walk to celebrate new exhibits. 5 to 8 p.m. Free. Wisconsin Avenue between Q and R streets NW. georgetowngalleries.com.
- “Saturday Morning at the National” will feature Blue Sky Puppet Theatre’s “If Pigs Could Fly.” 9:30 and 11 a.m. Free; reservations suggested. Helen Hayes Gallery, National Theatre, 1321 Pennsylvania Ave. NW. thenationaldc.org/saturday-morning-at-the-national.
- Teatro de la Luna will begin a six-week theater workshop for children (for ages 6 through 11). 10 a.m. to noon. $150. Casa de la Luna, 4020 Georgia Ave. NW. 202-882-6227.
- A safari-themed family program will feature a photo scavenger hunt in search of animals depicted on artwork throughout the Smithsonian American Art Museum, as well as a chance to make binoculars at a craft table. 11:30 a.m. to 3 p.m. Free. Kogod Courtyard, Smithsonian American Art Museum, 8th and G streets NW. 202-633-1000.
- Swedish artist and art teacher Karin Lithell will lead a workshop for children. Noon to 3 p.m. Free. House of Sweden, 2900 K St. NW. www.swedenabroad.com/washington.
- A park ranger will lead a planetarium program about the season’s brightest stars, planets and constellations (for ages 5 and older). 1 p.m. Free. Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6070. The program will repeat Sunday at 1 p.m.
- Children will hear a story about Dolores Huerta and then create a special piece of art. 1 to 4 p.m. Free. National Portrait Gallery, 8th and F streets NW. 202-633-1000. The program will repeat Sunday from 1 to 4 p.m.
- The House of Sweden will host a weekly storytime for children and families to experience Swedish children’s literature. 2 p.m. Free. House of Sweden, 2900 K St. NW. www.swedenabroad.com/washington.
- A park ranger will lead a planetarium program about the solar system, the Milky Way and other deep space objects (for ages 7 and older). 4 to 4:45 p.m. Free. Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6070. The program will repeat Sunday at 4 p.m.
Classes and workshops
- Gayla April will present a weekly dance/exercise class. 9:30 a.m. Free; reservations required. Guy Mason Recreation Center, 3600 Calvert St. NW. 202-727-7527.
- The Kennedy Center will host an all-levels vinyasa yoga class led by Atticus Mooney. 10 a.m. Free; reservations suggested. Grand Foyer, Kennedy Center. kennedy-center.org.
- The Mount Pleasant Library will present “Saturday Morning Yoga.” 10 a.m. Free. Mount Pleasant Library, 3160 16th St. NW. 202-671-3122.
- The Petworth Library will host a “Home Buying 101 Workshop.” 10 a.m. to 3:30 p.m. Free; reservations suggested. Petworth Library, 4200 Kansas Ave. NW. email@example.com.
- Heather Markowitz, founder of WithLoveDC, will lead a “Practice With Love” yoga class. 10:30 to 11:30 a.m. Free. National Garden Lawn Terrace, U.S. Botanic Garden, 100 Maryland Ave. SW. 202-225-8333.
- The Mayor’s Office on Asian and Pacific Islander Affairs will host a tai chi class. 10:45 to 11:45 a.m. Free. Chinatown Park, 5th Street and Massachusetts Avenue NW. 202-727-3120.
- Yoga Activist will present a class for beginners. 11 a.m. Free. Petworth Library, 4200 Kansas Ave. NW. 202-243-1188.
- The DC Film Alliance will present workshops on how to break into and maintain a career in acting. 1 to 5 p.m. Free. Capitol Hill Arts Workshop, 545 7th St. SE. 202-547-6839.
- The Science of Spirituality Meditation Center will host a vegetarian cooking class on “Healthy Snacks for Kids.” 1:30 to 2:30 p.m. Free; reservations required. Science of Spirituality Meditation Center, 2950 Arizona Ave. NW. firstname.lastname@example.org.
- “Jazz in The Parks” will feature performances by a four-piece mobile brass band led by trombonist Rod Mangum; children’s performer Baba Ras D; and the Donvonte McCoy Quartet. 4 to 7 p.m. Free; items from the Hardy’s BBQ Food Truck available for purchase. The Parks at Walter Reed, Georgia Avenue and Butternut Street NW. TheParksatWalterReed@gmail.com.
- Chicago’s Mariachi Herencia de México will perform in honor of Mexican Independence Day. 6 p.m. Free. Millennium Stage, Kennedy Center. 202-467-4600.
- NSO Pops will present “Blue Suede Tunes: The Music of Elvis, The Beatles, and More!” with Frankie Moreno. 8 p.m. $24 to $89. Concert Hall, Kennedy Center. 202-467-4600.
Discussions and lectures
- The Sibley Senior Association’s “2017 Aging on Your Terms Conference” will feature a morning session on “Aging in the Community Setting” and an afternoon session on “Aging, Dating and Sex.” 9 a.m. to 3 p.m. $25 to $45; registration required. Conference Room 1, Building A, Sibley Memorial Hospital, 5215 Loughboro Road NW. 202-364-7602.
- Gabriel Tallent will discuss his debut novel “My Absolute Darling.” 1 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- James Reston Jr. will discuss his book “A Rift in the Earth: Art, Memory, and the Fight for a Vietnam War Memorial.” 3:30 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- Erika Raskin will discuss her new medical thriller “Best Intentions.” 5 to 7 p.m. Free. Busboys and Poets Takoma, 235 Carroll St. NW. 202-726-0856.
- Nancy Pearl will discuss her novel “George and Lizzie.” 6 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- “From Vault to Screen: Recent Restorations From the Academy Film Archive” will feature Joseph Strick’s 1963 film “The Balcony.” 2:30 p.m. Free. East Building Auditorium, National Gallery of Art, 4th Street and Pennsylvania Avenue NW. 202-737-4215.
- The Washington Jewish Film Festival’s series “5777: A Year in Review,” a tribute to major Jewish artists who passed away, will feature Howard L. Weiner’s 2017 film “The Last Poker Game,” at 6:30 p.m.; and Charles Walters’ 1964 film “The Unsinkable Molly Brown,” at 8:30 p.m. $13.50 per screening. Edlavitch DC Jewish Community Center, 1529 16th St. NW. wjff.org.
- The Golden Universe Dance Studio and the Beijing Dance Academy will perform a diverse selection of Chinese national dances. 2 and 7:30 p.m. $25 to $65. Sidney Harman Hall, 610 F St. NW. 202-547-5688.
- The Pan American Symphony Orchestra will present an all-Argentine cast in “Maria de Buenos Aires,” Astor Piazzolla’s genre-bending tango opera. 8 p.m. $45. Lisner Auditorium, George Washington University, 730 21st St. NW. 202-994-6800.
- A cast of D.C. professionals will join Minneapolis-based BodyCartography Project for “closer,” a piece that lays bare the power of physicality through a series of duets that multiply into an expansive performance experience and party. 8 p.m. $15 to $30. Dance Place, 3225 8th St. NE. 202-269-1600. The performance will repeat Sunday at 7 p.m.
- Friends of Glover Park will host its annual “Glover Park Four Corners Mega Families Yard Sale.” 9 a.m. to 1 p.m. Free admission. 39th and Calvert streets NW. GSCMFiorillo@aol.com.
- The fourth annual Freedom 5K, a fundraiser for President Lincoln’s Cottage, will feature a cross-country event through the 250-acre Armed Forces Retirement Home campus, where President Abraham Lincoln and his family resided during his presidency. 9 to 11 a.m. $35 to $40. President Lincoln’s Cottage, Upshur Street and Rock Creek Church Road NW. 202-829-0436.
- The National Zoo’s Enrichment Day will feature a chance for visitors to attend demonstrations, participate in training and enrichment activities, and talk to animal keepers about the importance for the Zoo’s animals of unique forms of stimulation such as jolly balls, climbing structures and puzzle feeders. 10 a.m. to 2 p.m. Free. National Zoo, 3001 Connecticut Ave. NW. 202-633-3045.
- President Lincoln’s Cottage will host “Homecoming,” featuring pony rides, DIY top hats, food vendors, a Civil War encampment and more. 10 a.m. to 3 p.m. Free. President Lincoln’s Cottage at the Soldiers’ Home, Upshur Street at Rock Creek Church Road NW. lincolncottage.org.
- Georgetown Community Day will feature food, live performances, face painting, a moon bounce, balloon art, a 70-foot inflatable obstacle course and more. 11 a.m. to 1 p.m. Free. Healy Lawn, Georgetown University, 37th and O streets NW. communityengagement.georgetown.edu.
- “Elizabeth Thomas Day” will commemorate the life and legacy of the free African-American woman whose land was used to build Fort Stevens. Noon to 2 p.m. Free. Fort Stevens, 13th and Quackenbos streets NW. 202-895-6070.
- TheatreWashington will present the inaugural theatreWeek Kickoff Party, celebrating the launch of the 2017-18 theater season in the nation’s capital with food, drinks, live performances, giveaways and more. Noon to 4 p.m. Free. Woolly Mammoth Theatre Company, 641 D St. NW. theatreweek.org.
- The H Street Festival will feature live music, dance performances, fitness demonstrations, eating contests, interactive art displays, children’s activities, assorted food and more. Noon to 7 p.m. Free. H Street between 4th and 14th streets NE. hstreet.org.
- An Oktoberfest celebration will feature a beer-fueled tour of six top Chinatown venues, with a different 12-ounce Oktoberfest beer at each stop. Noon to 9 p.m. $20 to $30; reservations required. 10 Tavern, 707 G St. NW. tinyurl.com/DistrictOktoberfest.
- “Brews, Booze & Bites: American History Food Festival” will offer live music and traditional lawn games along with tastings and sips with ties to the past from local bakers, brewers, distillers, cooks and confectioners. 1 to 4 p.m. $30 to $35; reservations required. Tudor Place Historic House and Garden, 1644 31st St. NW. tudorplace.org.
- To celebrate Hispanic Heritage Month, “Cooking Up History: Hispanic Food Migrations” will feature guest chef Sandra A. Gutierrez, author of the cookbook “The New Southern-Latino Table: Recipes That Bring Together the Bold and Beloved Flavors of Latin America and the American South.” 2 to 3 p.m. Free. Coulter Performance Plaza, National Museum of American History, 14th Street and Constitution Avenue NW. s.si.edu/CookHistory.
- Washington Photo Safari will present a benefit event to raise money for victims of Hurricane Harvey, featuring two hours of free instruction by professional photographers in camera use and photographic composition during a walk from Lafayette Park to the Red Cross Memorial at 17th and E streets NW. 2:30 to 4:30 p.m. $100 donation to the American Red Cross. Meet at the Andrew Jackson statue in Lafayette Park, 16th and H streets NW. washingtonphotosafari.com.
- The National Capital Astronomers will present “Exploring the Sky,” featuring a night of stargazing through the lens of a telescope. 8 p.m. Free. Military Field near the Picnic Grove 13 parking lot, Glover Road near Military Road NW. 202-895-6070.
- The Washington Nationals will play the Los Angeles Dodgers. 1:05 p.m. $12 to $370. Nationals Park, 1500 South Capitol St. SE. 888-632-6287. The series will continue Sunday at 8:08 p.m.
- Joseph LMS Green will host a youth open mic poetry event with teen members of the DC Youth Slam Team. 5 to 7 p.m. $5. Cullen Room, Busboys and Poets 5th & K, 1025 5th St. NW. 202-789-2227.
Walks and tours
- As part of the annual WalkingTown DC event, Craig Howell will lead “Lafayette Square in the Civil War Era,” about D.C.’s most fashionable neighborhood of the time. 10 a.m. to noon; reservations required. Free. culturaltourismdc.org. Various tours throughout the city will continue through Sept. 24.
- A park ranger will lead “Seasonal Discovery Nature Walk: MIlkhouse Ford Loop.” 10 a.m. to noon. Free. Meet at the Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6000.
- Washington Walks will present a walking tour on “The Imprint of World War I.” 2 p.m. $15 to $20. Meet by the statue of Gen. John J. Pershing in Pershing Park, 14th Street and Pennsylvania Avenue NW. washingtonwalks.com.
- The Washington National Cathedral’s “Angels and Monsters Tower Climb” will feature a close-up look at various gargoyles and grotesques while visiting the open-air walkway wrapping around the two western towers. 1 p.m. $50; reservations required. Washington National Cathedral, Massachusetts and Wisconsin avenues NW. cathedral.org. The event will also be offered Sept. 29 at 10 a.m.