“Weapons Platoon: A Marine’s Life in Afghanistan,” 9 a.m.-5 p.m. daily, National Museum of the Marine Corps, 18900 Jefferson Davis Hwy., Triangle. 877-635-1775.
“From Morning to Night: Domestic Service in the Gilded Age South,” a traveling exhibit on domestic service of the early 20th century. 10 a.m.-5 p.m. Tuesdays-Sundays, through April 21, Manassas Museum, 9101 Prince William St., Manassas. $5; seniors and children, $4; Baldwin students and their families, free. 703-368-1873.
“Marianne and Jack: Fire and Water,” pottery by Marianne Cordyack of Reston and watercolors by Jack Dyer of Springfield. 11 a.m.-5 p.m. daily, through Monday, Artists’ Undertaking, 309 Mill St., Occoquan. Free. 703-494-0584.
AARP income-tax preparation help, for taxpayers 60 and older or those with low incomes. 9:30 a.m.-3 p.m. Mondays and Fridays, through April 15, Woodbridge Senior Center, 13850 Church Hill Dr., Woodbridge. Free, appointments required. 703-792-5082.
“Landscape: Two Parables,” 10 a.m.-5 p.m. Mondays-Fridays, 1-5 p.m. Saturdays, through April 25, Center for the Arts, Caton Merchant Family Art Gallery, 9419 Battle St., Manassas. Free. 703-330-2787 or www.center-for-the-arts.org.
Prince William Community Band, rehearsal, for musicians 19 and older, no auditions necessary. 7:30 p.m., Saunders Middle School, 13557 Spriggs Rd., Manassas. Free. 703-791-4119 or www.pwcb.org.
Woodbridge Community Choir, members rehearse for their spring concert season. No auditions required. Registration, 7 p.m.; rehearsal, 7:30 p.m., Lutheran Church of the Covenant, 15008 Cloverdale Ave., Dale City. $30 membership fee. 703-491-1820 or www.woodbridgecommunitychoir.org.
“Cool Copper — Hot Diana,” copper work by Anne Jordan of Fairfax and paintings by Roger Frey of Woodbridge. 11 a.m.-5 p.m. daily, through May 6, Artists’ Undertaking, 309 Mill St., Occoquan. Free. 703-494-0584.
“How Culture Cues Connections,” metallic archival photographs by Deborah Herndon. 11 a.m.-4 p.m. Tuesdays-Fridays, 11 a.m.-5 p.m. Saturdays and noon-5 p.m. Sundays, through April 28, Loft Gallery, 313 Mill St., Occoquan. Free. 703-490-1117.
Prince William Chorale, new members welcome. 7-8:30 p.m. Tuesdays, New Hope Christian Church, 8310 Plantation Lane, Manassas. Free. 703-732-0128 or www.pwchorale.webs.com.
Prince William Purlers Knitting Guild, 7-9 p.m., Manassas Baptist Church, Java Rock Cafe, 8730 Sudley Rd., Manassas. 703-791-6175.
Foreign-educated immigrant seminar, college representatives discuss programs available for additional education or professional licensing or certification. 9 a.m., Northern Virginia Community College, 6901 Sudley Rd., Manassas. Free, registration required. 703-257-6580.
Job search network group, in addition to networking, weekly meetings will cover various topics related to the job search process. 6-7:30 p.m., House of Mercy, 8170 Flannery Ct., Manassas. Free. 703-659-1636.
Photographer Nate Larson, a professor at the Maryland Institute College of Art, discusses his work. 7 p.m., Northern Virginia Community College, 15200 Neabsco Rd., Woodbridge. 703-323-3000.
English Conversation Club, new speakers of English practice their skills. 11 a.m. and 7 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. 703-792-4800.
Lake Ridge Toastmasters Club, an open house for Lake Ridge Club 8913. 7:30 p.m., Tall Oaks Community Center, 12298 Cotton Mill Dr. $62 membership fee. 703-491-3020.
Haunted Occoquan Walking Tour, paranormal investigator Kay Pietrewicz leads tours through the town. 8 p.m. Wednesdays-Fridays, 4 and 8 p.m. Saturdays, Occoquan Visitors Center, 200 Mill St. $12; children 6-12, $6; children 5 and younger, free. 571-572-9410 or www.haunted-occoquan.com.
Spanish chat, bring lunch and practice speaking Spanish. Noon-2 p.m., Central Community Library, 8601 Mathis Ave., Manassas. 703-361-8211.
First Minnesota Actions in Prince William County, historian James Owens gives a lecture on the battle of First Manassas in 1861. 7 p.m., Old Manassas Courthouse, 9248 Lee Ave. Free, donations accepted. 703-792-4754 or www.pwcgov.org.
Park Day, volunteers clean up as part of a national effort to clean and restore parks, battlefields and cemeteries. 8 a.m.-noon, Bristoe Station Battlefield Heritage Park, 10708 Bristow Rd., Bristow. 703-366-3049 or firstname.lastname@example.org.
School rummage sale, proceeds will help buy laptops and iPads. 8 a.m.-1 p.m., Henderson Elementary School, 3799 Waterway Dr., Montclair. 703-590-2966.
Manassas farmers market, 10 a.m. Saturdays, Parking Lot B, West Street (next to the train station visitors center). 703-361-6599 or www.visitmanassas.org.
Potomac River blockade history tour, on a pontoon boat, a historian discusses the significance of the Confederates’ blockade along the Potomac during the Civil War. Lunch is included. Sponsored by the Prince William County Historic Preservation Division. 10 a.m.-1 p.m., Leesylvania State Park, 2001 Daniel K. Ludwig Dr., Woodbridge. $30, reservations required. 703-792-4754.
History Myths tour, site staff lead myth-busting tours on the hour. 11 a.m.-4 p.m., Ben Lomond Historic Site, 10321 Sudley Manor Dr., Manassas. $5; children 5 and younger, free. 703-367-7872.
Historic Preservation talk and tour, preservationists explain what makes a building worth saving and why it’s important. Participants will be able to go inside the jail that is undergoing restoration. 1-3 p.m., Brentsville Courthouse Historic Centre, 12229 Bristow Rd., Bristow. $15. 703-365-7895.
“NOVA’s Favorite Dancer” dance competition, nine soloists and one dance group compete for prizes. 2 p.m., Northern Virginia Community College, 6901 Sudley Rd., Manassas. Free, reservations required. 703-323-3000.
Author talk, local historians Don Hakenson and Chuck Mauro discuss their book, “A Tour Guide and History of Col. John S. Mosby’s Combat Operations in Fairfax County, Virginia.” 2 p.m., Manassas Museum, 9101 Prince William St., Manassas. Free. 703-368-1873.
Bhangra dance, a performance of traditional and modern forms of the Punjabi Bhangra dance. 2 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. Free. 703-792-4800.
— Compiled by Sarah Lane