Dale City farmers market, 8 a.m.-1 p.m., Dale City Commuter Lot, behind Center Plaza Shopping Center, Dale Boulevard. 703-670-7112, Ext. 227, www.pwcparks.org.
Sundays in Victorian America, a program by Historic Faith Ministries focused on 19th-century worship practices and church-centered activities. 11 a.m. Sundays, Brentsville Courthouse Historic Centre, Union Church, 12229 Bristow Rd., Bristow. Free. 703-365-7895.
Manassas Civil War Weekend, a living history commemoration, military and medical demonstrations, speaker James “Bud” Robertson, period baseball games, music, food and more. 9 a.m.-8 p.m., Manassas Museum, 9101 Prince William St. Free. 703-361-6599 or www.manassascivilwar.org.
“9/11: We Remember,” features an I-beam from the World Trade Center, a Pentagon building fragment and other items in commemoration of the anniversary of Sept. 11, 2001. 9 a.m.-5 p.m. daily, National Museum of the Marine Corps, 18900 Jefferson Davis Hwy., Triangle. Free. 877-635-1775.
“Enduring Legacy: Liberia Plantation 1825-2013,” an exhibit detailing the history of the plantation. 10 a.m.-5 p.m. Tuesdays-Sundays, Manassas Museum, 9101 Prince William St., Manassas. $5; seniors and children, $4; Baldwin students and their families, free. 703-368-1873.
“Artistic Impressions,” pottery by Sherri Johnson of Fairfax and digitally painted photographs by David and Jane Ernst of Springfield. 11 a.m.-5 p.m. daily through Sept. 2, Artists’ Undertaking Gallery, 309 Mill St., Occoquan. Free. 703-494-0584.
“Portraits and Patterns,” original block prints by Linda Larochelle. 11 a.m.-4 p.m. Tuesdays-Fridays, 11 a.m.-5 p.m. Saturdays and noon-5 p.m. Sundays, through Sept. 1, Loft Gallery, 313 Mill St., Occoquan. Free. 703-490-1117.
Battle of Bristoe Station discussion,with military historian Ron Mayer. 11 a.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas. Free. 703-792-4530.
Canoe tour,a ranger leads a guided tour on Powell’s Creek. 11:30 a.m. Sunday, Leesylvania State Park, 2001 Daniel K. Ludwig Dr., Woodbridge. $9, registration required. 703-583-6904.
“REmerging Technologies,” Don Hurlbert, GC Schow and Kathy Strauss use various photographic processes to express their personal vision. 10 a.m.-5 p.m. Mondays-Fridays, 1-5 p.m. Saturdays, through Sept. 19, Center for the Arts, Caton Merchant Family Art Gallery, 9419 Battle St., Manassas. Free. 703-330-2787 or www.center-for-the-arts.org.
New Dominion Choraliers, members rehearse for their fall season. 7:30 p.m.; registration for new members begins at 7 p.m. Old Bridge United Methodist Church, 3966 Old Bridge Rd., Woodbridge. $35 membership fee. 703-498-8906, 703-590-2147 or www.newdominionchoraliers.org.
Woodbridge Community Choir, members rehearse for their holiday 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.
Manassas farmers market, 4-7 p.m. Tuesdays, Parking Lot F, Prince William and Main streets. 7:30 a.m.-1 p.m. Thursdays, Loy E. Harris Pavilion, 9201 Center St. 7:30 a.m.-1 p.m. Saturdays, Parking Lot B, West Street (next to the train station visitors center). 703-361-6599 or www.visitmanassas.org.
Writers of children’s literature, 7 p.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas. 703-792-4530.
Manassas Chorale open rehearsal, 7:30 p.m. Tuesdays, Manassas Baptist Church, 8730 Sudley Rd. 703-361-2146, Ext. 291, or www.manassaschorale.org.
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.
Job search network group, 6-7:30 p.m., House of Mercy, 8170 Flannery Ct., Manassas. 703-659-1636.
Lake Ridge Toastmasters Club, 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; 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.
Gainesville farmers market, 2-6 p.m. Thursdays, Marque at Heritage Hunt, 13550 Heathcote Blvd., Gainesville. 703-754-7711.
Movie Night on the Lawn,“G.I. Joe: Retaliation.” 8 p.m., Northern Virginia Community College, Mary Louise Jackson Amphitheater, 6901 Sudley Rd., Manassas. $2; NVCC students, faculty and staff, free. 703-530-3029.
Manassas Park farmers market, 3-7 p.m., Manassas Park City Hall, 1 Park Center Ct. 703-335-8800.
Occoquan farmers market, 8 a.m.-noon, Mill Street parking lot, next to Route 123 bridge, Occoquan. 703-491-1918.
Prince William Community Band concert, bring chairs, blankets and picnics and listen to patriotic music. 6:30-8 p.m., Loy E. Harris Pavilion, 9201 Center St., Manassas. Free. 703-330-2787 or www.center-for-the-arts.org .